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MS-DEFCON 2: Preparing for 26H2

5 November 2026 at 03:45
ISSUE 23.44.1 • 2026-11-05 By Susan Bradley There’s a lot happening this month. October represented the end of the support window for Consumer and Pro versions of Windows 11 24H2. If you are still on either of those editions, you’ll need to make sure that you use the 25H2 enablement links to upgrade. But do […]

What Democratic control of Congress means for cybersecurity

4 November 2026 at 18:05

Democrats’ big win on Election Day, which saw them take control of both the House and Senate, has ramifications for the Cybersecurity and Infrastructure Security Agency, artificial intelligence, surveillance policy and much more.

Here’s what lawmakers and cybersecurity experts have to say about the short-term and long-term prospects on Capitol Hill.

Leadership plans ahead

Maggie Hassan, D-N.H. is in line to take the gavel on the Senate Homeland Security and Governmental Affairs Committee, with Sen. Gary Peters, Mich., retiring.

“Our government’s number one job is to keep people safe, and the Senate Homeland Security and Governmental Affairs Committee must work to ensure that our country remains safe, secure and free from all kinds of threats,” Hassan said in a statement to CyberScoop. “That work involves protecting against terrorism and fentanyl trafficking, but it also includes guarding against emerging threats like artificial intelligence security risks and strengthening our cybersecurity.”

“The Trump-Vance administration has undermined our security on these fronts, including by diverting resources away from combatting fentanyl trafficking and gutting CISA,” she continued. “We need to reverse these cuts, confront these challenges and put public safety first.”

Rep. Bennie Thompson, D-Miss., is poised to return once again as chair of the House Homeland Security Committee, said Democrats are taking over at a “pivotal time for CISA,” with it looking to add staff after cutting back by nearly one-third.

“First and foremost, we will aim to work with CISA to expedite its critical re-staffing effort and to ensure it has the expertise necessary to support stakeholders as they defend against the scale and velocity of AI-enabled cyber-attacks,” he said in a statement to CyberScoop. “Advances in AI can help defenders, but it will also accelerate the consequences of deferred investments in security and CISA must be well-positioned to help critical infrastructure owners and operators rapidly improve their cybersecurity posture.”

“We will prioritize getting resources straight into the hands for defenders — by extending the State and Local Cybersecurity Grant Program and improving support of under-resourced sectors, especially water,” he continued. “We will work to ensure CISA re-establishes its cross-sector coordination capacity, which was diminished when the Trump administration- terminated CIPAC, by making sure the Anchor-CI is eventually up and running and meets the needs of stakeholders. Finally, we will make sure CISA is well-positioned to support the secure development and deployment of AI.”

What happens in the lame-duck session

Before the GOP relinquishes control of the House and Senate to Democrats, though, there’s a lame-duck session ahead. 

Long-term renewal of the Cybersecurity Information Sharing Act of 2015 (CISA 2015) is a bipartisan and industry priority, with it set to expire Dec. 11. Current Senate Homeland Security and Governmental Affairs Chairman Rand Paul, R-Ky., has been the biggest obstacle to reauthorization, but he could get “rolled” by GOP leadership on an extension, said Michael Garcia, a former government cyber official and vice president of the cybersecurity practice at Monument Advocacy. Possible vehicles for CISA 2015 to hitch a ride include an omnibus funding bill or the annual defense policy bill.

The Department of Homeland Security, and its subagency CISA, are currently operating on a continuing resolution that’s also set to expire Dec. 11, where lawmakers could temporarily extend CISA 2015 if a long-term solution can’t be reached in the lame duck. Another continuing resolution before Dec. 11 in lieu of an omnibus spending bill is an option for the lame duck. Both a CR and omnibus spending bill would theoretically include DHS funding, although the agency’s funding has been made more difficult in the past by the presence of Immigration and Customs Enforcement within the department.

Republicans have talked about wanting to get the fiscal 2027 National Defense Authorization Act done in the lame duck. Besides the possibilities of CISA 2015 being included in the bill, Nicholas Leiserson, senior vice president for policy at the Institute for Security and Technology, said the Senate version of the legislation has a pair of very noteworthy cyber provisions: a “very broad” authorization for contractor-owned, contractor-operated offensive cyber operations, and a requirement that every artificial intelligence product sold to the Defense Department have an AI bill of materials.   

Additional leadership shuffle

While Paul is losing his gavel, he’s shown he can be a disruptive force on passing cybersecurity legislation through the Senate in the minority. That makes what he does next possibly determinative for cyber bills, Leiserson and Garcia said. “If he leaves HSGAC, let a thousand cyber bills flourish!” Garia quipped on social media. Paul could opt to become the top Republican on the Senate Health, Education, Labor and Pensions Committee instead of HSGAC.

Nebraska Sen. James Lankford would take over for Paul as top HSGAC Republican in that scenario, and an industry source said he’s viewed as a supporter of CISA 2015.

On Senate Intelligence, the panel’s leadership goes to a lawmaker who has placed a big emphasis on cybersecurity in his congressional career: Mark Warner, D-Va. 

On the House side, while Rep. Andrew Garbarino, R-N.Y., moves to the minority on the Homeland Security panel, he has proven willing to collaborate with Democrats on cybersecurity issues. Rep. Delia Ramirez, D-Ill., is poised to take the gavel of the panel’s cybersecurity subcommittee, and Rep. Vince Fong, R-of California looks set to become the subcommittee’s top Republican and has his own history of bipartisanship. Fong would replace current subcommittee chair Andy Ogles, the far-right Tennessee Republican who lost in the primaries.

One thing to watch in the House, Leiserson said, is how the House looks to tackle AI — through existing committees, a select committee or some other structure. Democrats haven’t put forward a unified front on AI guardrails yet.

With AI models uncovering as many vulnerabilities as they are, “highly capable frontier models are going to drive a lot of discussion” about AI and cybersecurity, said Craig Albright, the Business Software Alliance’s senior vice president for U.S. government relations.

Appropriations, oversight, legislation

If the NDAA or a CISA 2015 extension don’t pass in the lame duck, they’d be priorities in 2027, too.

“CISA 2015 has to happen, and if we can’t get it done, then we can’t move to the next thing,”  said Henry Young, BSA’s policy director. “Once we get it done, there’s an open question about which of these priorities that we’ve talked about gets to be number one. Is it post-quantum cryptography? Is it government IT modernization? Is it frontier AI cybersecurity systems? We don’t know that yet, and we can’t know until we pass this law.”

How damaged the agency CISA is by Trump administration’s budget cuts is something Democrats are expected to scrutinize closely. Another top budget issue is what to do with the expired State and Local Cybersecurity Grants Program housed at DHS, since even if it’s reauthorized, it will require appropriators taking steps to invest in it.

Democrats could take a look at a variety of other Trump administration changes at DHS and CISA, on topics like election security, the Cyber Safety Review Board, the Joint Cyber Defense Collaborative and more. 

More broadly, Leiserson said an area of Democratic cyber oversight is likely to be the Department of Government Efficiency that cut cyber personnel at agencies at and beyond CISA, and “particularly the integrity of systems that DOGE touched when they were given very high privileged access to federal systems.”

If the White House puts forward a permanent nominee for director of CISA, Democrats would be poised to vet that person. They also would have a say in who leads the Office of the National Cyber Director, should the incumbent, Sean Cairncross, depart.

So far, Democrats haven’t put forward a unified posture on expired surveillance authorities known as Section 702, although both Warner and incoming House Intelligence Chairman Jim Himes, D-Conn., have fought in the past for its renewal. The surveillance program is operating similarly still due to a court order, but that order only lasts through next spring.

The post What Democratic control of Congress means for cybersecurity appeared first on CyberScoop.

October 26, 2026 Apple Updates

By: PKCano
28 October 2026 at 04:00
Apple released a multitude of updates Monday, October 26, 2026. In addition to the version 27.2 updates, Apple has pushed updates to its older operating systems, including a Core Graphics fix for a vulnerability that may have been exploited in targeted attacks. Apple continues to use AI to find and correct vulnerabilities across the board […]

Senators, rights groups say Trump administration breaking law by withholding surveillance court opinion

26 October 2026 at 14:05

The Trump administration is breaking the law after being more than a month overdue on declassifying a court opinion on the surveillance of U.S. citizens, according to two senators and a coalition of civil liberties groups.

Release of the Foreign Intelligence Surveillance Court (FISC) opinion has been closely tied to reauthorizing Section 702 of the Foreign Intelligence Surveillance Act (FISA), which lapsed this summer, although collection authority has continued under another court ruling that runs through March of next year.

Under Section 702, the government can warrantlessly search foreign targets’ electronic and phone communications using the personal information of Americans who have been in contact with them.

In the FISC opinion that the administration has not declassified, a judge objected to tools the government has created to let analysts process messages. The objection reportedly was over a filtering system that allowed analysts to get information in a way that should be counted as a query of Americans’ information, which is subject to extra protections.

Sen. Ron Wyden, D-Ore., who co-authored a letter to administration officials Monday with Sen. Adam Schiff, D-Calif., had previously said the opinion shows “major compliance problems” and had  objected to a short-term reauthorization of Section 702 until officials agreed to release it.

“As Congress continues to debate the fate of this authority, lawmakers must be able to discuss these abuses openly,” Wyden and Schiff wrote to Director of National Intelligence Jay Clayton and Attorney General Todd Blanche. “Otherwise, the American people will rightly question whether a government that so flagrantly violates basic legal requirements, like the statute requiring declassification, can ever be trusted to not abuse a powerful surveillance tool like Section 702.”

The Senate duo and the coalition of civil liberties groups in a separate letter to congressional leaders said that under the law, the letter was due Sept. 13. Blanche had previously committed to declassify the letter to lawmakers by the statutory deadline. The letter was also overdue by another measurement, with the leaders of the Senate Intelligence Committee saying that they expected the declassification and release by May 15.

A spokesperson for Senate Intelligence Chairman Tom Cotton, R-Ark., didn’t respond to a request for comment, but the office of the leader of the Democratic side of the panel, Sen. Mark Warner of Virginia, did.

“The Vice Chairman has been clear that he supports transparency with regard to Section 702 of FISA,” a spokesperson, Rachel Cohen, said in a statement to CyberScoop. “This is precisely why he and Chairman Cotton urged then-DNI [Tulsi] Gabbard in March to declassify the March 17 FISC opinion. Unfortunately, neither Director Gabbard nor Acting Director [Bill] Pulte were responsive, but Senator Warner expects that DNI Clayton will declassify the opinion, consistent with the bipartisan SSCI letter and as required by law.”

Failure to declassify the opinion should be fatal to reauthorizing the expired surveillance law, the civil liberties groups wrote.

“Congress should refuse to support any reauthorization of Section 702 while the administration actively withholds legally mandated information about how the surveillance program operates,” they wrote. “Further, it must stop relying on executive branch self-policing to protect Americans’ rights and reauthorize Section 702 only with a warrant requirement to access Americans’ private communications.”

The Office of the Director of National Intelligence and the Justice Department didn’t immediately respond to requests for comment.

The post Senators, rights groups say Trump administration breaking law by withholding surveillance court opinion appeared first on CyberScoop.

A record-setting October

19 October 2026 at 03:42
PATCH WATCH By Susan Bradley Will October bring tricks or treats? It’s the season when children in all manner of scary and not-so-scary costumes come to my door at the end of the month to yell “Trick or Treat!” and are handed candy. It’s also the time when I look to Microsoft and wonder whether […]

Cybersecurity annoyances

12 October 2026 at 03:42
ON SECURITY By Susan Bradley It’s that time of the year again. No, not pumpkin spice — I’m talking about Cybersecurity Awareness Month. AI provided this definition: “October is recognized as Cybersecurity Awareness Month in the United States, led annually by CISA and the National Cybersecurity Alliance, with themes such as ‘Securing the Next 250’ […]

No PoC, No Problem: Rediscovering CVE-2025-29902 in the Telex RDC Server

12 August 2026 at 06:00

On a recent external network penetration test, the client's attack surface was quite small. From a tester’s perspective, that is usually bad news, because a handful of exposed services means only a handful of chances to find a way in. Luckily one host in particular jumped out at me, a Bosch Telex Remote Dispatch Console (RDC) Server.

A little research turned up Bosch advisory BOSCH-SA-992447, which maps to CVE-2025-29902, a CVSS 10.0 unauthenticated remote code execution vulnerability in the RDC's REST API, fixed in version 1.3.0 in May of 2025. The patch date on the web server's home page was "2023-07-29", leading me to believe the server was vulnerable. The bad news for me was that there were no public exploits available. I notified the customer who challenged me to demonstrate impact with a working proof of concept. This post walks through my journey trying to track down where the vulnerability was and how to exploit it.

Telex RDC is a dispatch console server used to drive radio communications, the kind of system you find behind dispatch centers for utilities, transit, and public safety. Per the Bosch advisory, the flaw lives in the REST API, affects all versions below 1.3.0, requires no authentication, and was responsibly disclosed by external researcher Omer Shaik. I managed to get in touch with the author of the exploit, but they were not willing to share a proof of concept.

Before I could analyze anything, I needed a copy of the old, v1.2 vulnerable software. The vendor's site offered the latest patched release, v1.3, which already had the fix implemented. Luckily, I was able to track down a download URL for the pre-patched version of Telex RDC, v1.2.

https://telex-downloads.s3.us-east-1.amazonaws.com/Releases/230809_v120_RDC_Server.zip

Now that I had both binaries, it was time to find out what had changed.

The textbook next move is patch diffing where you load both versions into a decompiler, compare them, and let the delta point you straight at the fix. I dropped both binaries into a fresh Ghidra project and ran a version diff, expecting a tidy little patch to jump out.

Ghidra version diff between v1.2 and v1.3

It did not. There were two full years and a complete UI overhaul separating v1.2 from v1.3. The diff was enormous, with thousands of changes and almost none of them related to the security fix. Trying to isolate the one patched code path in that sea of churn was a genuine needle-in-a-haystack problem.

This is the honest reality of patch diffing. It is fantastic when the vendor ships a small, targeted fix, and nearly useless when the vulnerable version is buried under a couple of years of unrelated feature work. Rather than burn the rest of the engagement squinting at decompiled functions, I switched approaches entirely.

If static analysis was going to fight me, I would let the application tell me where the bug was. I installed the RDC Server v1.2 on a Windows VM and stood up a local instance that I could poke at, without any risk to the client's production system.

Telex RDC Server local instance

I went back and reread the security advisory which gave me two extremely useful hints: the vulnerability was triggered over HTTP, and it did not require prior authentication. That narrowed the hunt to one question: which parts of the REST API can I reach without logging in?

So, I automated the question. I configured Autorize, the Burp Suite extension, to replay every authenticated request with the Authorization header removed, flagging any endpoint that answered the unauthenticated copy the same way it answered the authenticated one. Clicking through the entire admin interface with Autorize running produced a nice list of endpoints that were not enforcing authentication at all.

The endpoints reachable with no Authorization header are shown below.

/api/v1/resources?type=IMAGE_FILES
/SystemAdmin/views/activityLog.html
/SystemAdmin/views/selectorchooser.html
/SystemAdmin/views/audiofilechooser.html
/SystemAdmin/views/keylistener.html
/SystemAdmin/views/systemStatus.html
/SystemAdmin/views/radioChannels.html
/api/v1/ssl/status

One of the endpoints stood out from the others.

Autorize flagging endpoints that ignore authentication

The /api/v1/resources endpoint accepted uploads. My next step was to intercept the request in Burp Suite and look over the attack surface. I sent the unauthenticated POST and set the filename to a basic path traversal payload aimed at the root of the drive.

..\..\..\..\..\test.exe

To my amazement, the server responded with "204 No Content", indicating that no error had been encountered, so it was possible the file had been created on the server.

Unauthenticated arbitrary path traversal

Sure enough, browsing to C:\ on the VM showed my test.exe file sitting right there in the root of the drive. I was dumbfounded.

Unauthenticated path traversal successful

So, there it was. An unauthenticated attacker can write an arbitrary file anywhere on disk. That is the core of CVE-2025-29902. It is also, on its own, not remote code execution. Writing a file is only half the battle, because you still need something on the box to actually execute it.

My first idea was classic DLL hijacking. I fired up Process Monitor from the Sysinternals Suite and filtered on "Load Image" operations targeting DLLs under C:\Program Files\Telex\RDC Server\. The application loaded plenty of DLLs, but every one of them was already present on disk, so there was no missing DLL I could simply drop in. Exploiting that would have required DLL proxying.

ProcMon Load Image results, no missing DLLs to hijack

I kept exploring the application looking for a binary that would launch on demand. I found one. The web UI has a feature to regenerate the SSL configuration, and when you trigger it, the application shells out to a bundled openssl.exe living in the install directory.

The app launches its bundled openssl.exe during cert generation

That seemed to be a perfect target, a known, fixed path to an executable that the application itself runs, and one I can overwrite. The only catch was that triggering certificate regeneration requires being logged in, which brings us to the authentication bypass, courtesy of the same file write.

Poking around the install directory, I found SystemConfiguration.txt, which included the administrator username and password. The password appeared to be encrypted and Base64 encoded.

System configuration file with credentials on disk

I created a new Telex RDC server instance with a different username and password and made a copy of that configuration file.

Custom system configuration file

Next, I used the path traversal to overwrite the SystemConfiguration.txt with my modified version.

Overwriting the system configuration with new credentials

Once the service restarted, I logged into the administrator portal with username "jack" and password "admin". With admin access in hand, I used the file write one more time to overwrite openssl.exe with a compiled binary of my own. For a clean and harmless proof of concept, that binary just launches the Windows calculator.

#include <iostream>
#include <cstdlib>

int main() {
system("calc.exe");
std::cout << "Calculator opened. Press Enter to exit..." << std::endl;
std::cin.get();
return 0;
}

Overwriting the bundled openssl.exe as an unauthenticated user

Finally, I logged in with my credentials, browsed to System, then Certificates, then Install Self-Signed Certificate. The application dutifully invoked openssl.exe, which was now my binary, and up popped the most glorious calculator. Notably, it ran with administrator privileges, which meant full compromise of the server. The exploit chain was complete using an unauthenticated file write, authentication bypass, and another file write to finally achieve remote code execution as local administrator.

Proof of concept: arbitrary code execution as administrator on the RDC server

Back in my lab, everything worked but this exploit was scrappy, and there was no chance I was going to run the full chain against a live dispatch server. Instead, I proved reachability with the least invasive check possible, a single unauthenticated GET to /api/v1/resources against the production host. It responded just as the lab instance had, confirming that the vulnerable endpoint was exposed and unauthenticated, which was enough to prove exploitability without writing a single byte to the customer's system. I'm sure there are more elegant ways to get RCE with this path traversal, but this was the way I came up in the two days of testing available.

If you are running a Telex RDC Server, the mitigations are straightforward.

  • Patch to RDC Server v1.3.0 or later, and VLink 6.6.0 or later. This is the single most important step.

To check if you are currently vulnerable, send an unauthenticated GET request to the /api/v1/resources endpoint. If you receive a "200 OK" response, the server is vulnerable.

MS-DEFCON 2: 26H2 is here

8 October 2026 at 03:45
ISSUE 23.40.1 • 2026-10-09 By Susan Bradley Will October be better? It’s pumpkin spice season at the coffee shops, and there are pumpkins and Halloween decorations galore. But where I live, you wouldn’t know it. We are having our last gasp of heat, and summer will just not let go. I’m looking at the weather […]

Enablement package links

30 September 2026 at 04:00
For businesses, the easier way to get (and TEST) 26H2 is use the Enablement package links https://techcommunity.microsoft.com/blog/windows-itpro-blog/an-it-pro%E2%80%99s-guide-to-windows-11-version-26h2/4559760 As the post above points out the following items will be immediately enabled if they haven’t been turned on already Windows settings backup, which helps preserve supported Windows settings and Microsoft Store app lists for recovery and device […]

September 23, 2026 Apple Update

By: PKCano
24 September 2026 at 16:46
Apple has released one Update on Sept 23, 2026, watchOS 27.01, for Apple Watch Series 12 and Apple Watch Ultra 4. This update has no published CVE entries. This update fixes a bug that caused Apple Watch Series 12 and Apple Watch Ultra 4, on watchOS 27, to unexpectedly reboot while the User was performing […]

MS-DEFCON 2: Guiding you in for a landing

22 September 2026 at 03:45
ISSUE 23.38.1 • 2026-09-22 By Susan Bradley What. A. Mess. Remember that scene at the end of the second Die Hard movie? You know — the one where terrorists have taken over the air-traffic control system, there’s a swirling winter storm, the circling planes are all running out of fuel, and our hero is just […]

September 8, 2026 Apple Updates

By: PKCano
9 September 2026 at 04:54
Apple has again released Security Updates on Sept 8, 2026, this time for iPhones and iPads. And, no, not for security reasons this time. This update, iOS/iPadOS 26.6.2, has no published CVE entries. (Whew!) Apple will hold it’s “Surprise and shine” special Event today at 10 a.m. PT, to introduce its new line of iPhones […]

26H2 is coming

7 September 2026 at 03:42
PATCH WATCH By Susan Bradley You know me by now. I don’t jump on the latest and greatest. I test on sample machines and then decide when the time is right to deploy the updates. So, before I talk about 26H2 and how it’s coming up soon — probably in late September or early October […]

MS-DEFCON 2: Defer those previews

3 September 2026 at 03:45
ISSUE 23.35.2 • 2026-09-03 By Susan Bradley Clouds can break, and previews are betas. With the move to the cloud, too often we inadvertently become beta testers. Just the other day, Microsoft 365 had authentication issues and was down for some users for most of the day. Microsoft kept us informed on the admin console […]

End-of-summer wrap-up

31 August 2026 at 03:42
TAME YOUR TECH End-of-summer wrap-up By Susan Bradley Are you ready for 26H2 and new Apple devices? The end of August has always been a time for me to stop, reflect on the summer, determine if I got anything on my summertime to-do list done, and see whether I’m ready for fall. When I was […]

Unit 42 warns AI has shifted balance of power from defenders to attackers

27 August 2026 at 14:31

Unit 42’s top brass has seen enough from internal frontier AI model testing and malicious in-the-wild use of commercially available AI tools to be genuinely concerned.

“I can tell you without exaggeration that we believe that this is a generational shift in cybersecurity,” Sam Rubin, senior vice president of Palo Alto Networks’ threat intelligence arm, said in a media briefing Wednesday. 

A period of relative balance between security and exposure has been broken by frontier AI model capabilities that could allow attackers to find and exploit network weaknesses with speed, Rubin said.

Unit 42 warned that capabilities demonstrated by readily available agentic AI models, and those unlocked by frontier AI models that remain gated for defense, have shifted the balance of power from defenders to attackers.

“The defenses that we’ve had built up over years weren’t necessarily built for or prepared for these machine-speed attacks,” Rubin said. “Organizations are ill-equipped to detect and to respond quickly in the face of these attacks.

Back in April, when Anthropic brought Palo Alto Networks and other major technology companies together to form Project Glasswing, an initiative to find and address security defects with its Mythos model, Unit 42 estimated the same capabilities would be in the hands of attackers within a year. 

“Well, here we are five months later, and we’re starting to see the early waves of this threat in the wild,” Rubin said. 

Unit 42 is actively investigating an attack on one of its customers where an attacker used an agentic framework to exploit 50 applications and other weaknesses across the enterprise in less than 10 hours. Rubin estimates AI allowed the attacker to accomplish in 10 hours what would have taken at least 10 days in a pre-AI era. 

Attackers are already using AI across the entire attack chain, said Sherrod DeGrippo, vice president of threat intelligence at Unit 42. “We are not far from fully agentic attacks across all at once, but right now it’s piece by piece by piece,” she said. 

“AI has seeped into every part of what threat actors do,” including malware development at scale, delegation, social engineering and ransomware negotiations, DeGrippo added.

As such, she sees the threat landscape shifting in four areas. AI is a force multiplier, identity is the primary compromise vector, attackers are burrowing into foundational libraries and software supply chains “baked into the fabric of our digital world,” and nation-sponsored threat groups are learning more about points of weakness in enterprise systems, DeGrippo said.

Nobody is fully prepared for what’s coming and it would be naive or a bad defender mindset to think otherwise, she said. “This is a transformative period, and how organizations navigate that transformation is going to be make-or-break for a lot of them.”

The post Unit 42 warns AI has shifted balance of power from defenders to attackers appeared first on CyberScoop.

August 17, 2026 Apple Updates

By: PKCano
18 August 2026 at 04:00
For the third time in as many weeks, Apple has  released Security Updates for its more recent hardware. Today’s release included macOS Tahoe 26.6.2 and iOS/iPadOS 26.6.1.  Earlier, macOS Tahoe received some updates for macOS alone, causing the difference in the version numbers. Apple also released updates for iOS 18.7.10 and iPadOS 18.7.10 for devices […]

Making Windows more responsive

17 August 2026 at 03:42
PATCH WATCH By Susan Bradley Microsoft is setting expectations, or is it? The August updates begin the gradual rollout of the first of many promised changes to Windows 11. This would seem to be a matter of setting expectations, but if you don’t know precisely when the changes and improvements are coming, how can you […]

Microsoft Plugs Nearly 400 Security Holes

11 August 2026 at 17:28

Microsoft today released updates to remedy at least 398 security vulnerabilities in its Windows operating systems and supported software, including one weakness that is already being actively exploited and two others that were publicly detailed prior to today.

Image: Shutterstock, Mallika Home Studio.

August’s overstuffed bundle of patch joy from Microsoft did not eclipse its recording breaking release of more than 570 security updates last month, but it is double June’s then-record batch of nearly 200 fixes. Microsoft has attributed the recent patch deluge to vulnerability discoveries aided by artificial intelligence, and experts roundly agree that Windows users should get used to the idea of Patch Tuesdays (the second Tuesday of each month) covering hundreds of newly discovered security flaws.

Fully 42 of the 398 flaws that Microsoft patched today earned Redmond’s most-dire “critical” rating, meaning they are severe enough that malware or malcontents could exploit them to gain remote control over a Windows computer with little to no help from the user.

The sole known “zero day” bug fixed by Microsoft this month is CVE-2026-68820, a privilege escalation weakness in a core Windows component called afd.sys, which the security firm Automox describes as “the driver behind Windows socket connections on effectively every endpoint.”

“This isn’t a front-door bug,” Automox’s Landon Miles wrote in a Patch Tuesday blog post. “It’s step two in a chain: an attacker phishes their way into a low-privilege foothold, then uses the driver flaw to take the box. The 7.0 score reflects the high attack complexity, because race conditions are fiddly. The exploit has to be thrown over and over until the timing lands. Someone is clearly landing it anyway.”

CVE-2026-62832 is another privilege escalation flaw that Microsoft has labeled likely to be exploited; this flaw, in the Windows User Profile Service, may be related to the recent “LegacyHive” public disclosure from the prolific bug hunter known as Nightmare Eclipse. The other publicly disclosed flaw is CVE-2026-72971, a low-impact local tampering vulnerability that Microsoft reckons is unlikely to be exploited.

Other major software makers are likewise increasing their patch volumes and cadence thanks to AI, including Adobe which last month moved to twice-monthly security bulletins published on the 2nd and 4th Tuesday of each month. Cisco, Google, Mozilla and Oracle also are shipping updates far more frequently and abundantly.

By all accounts, AI is quite good at finding security holes in software. But for now at least, patching the resulting bugpocalypse remains a heavily human-centric endeavor, and the jury is still out on whether AI technologies will turn out to be as good at fixing vulnerabilities as they are at finding and exploiting them. This is an important question when one considers that these same AI technologies also are suggesting fixes for the vulnerabilities they find.

Researchers at 1Password recently examined what happens when different large language models (LLMs) generate vulnerability patches for newly disclosed, complex vulnerabilities. They found the LLMs produced patches that failed to fix the flaw or added a new weakness in the process (or both) more than half the time.

Ed Skoudis, president of the SANS Technology Institute, said his team has seen excellent results using AI to generate patches, provided there are humans in the loop to test the suggested fixes and push for iterative improvements.

“AI is rapidly becoming astonishingly good at finding vulnerabilities, but this research shows that fixing them is a very different problem,” Skoudis wrote in a SANS newsletter today. “Don’t expect one-shot AI patching to work reliably. Instead, iterate, test, challenge, improve, and verify. AI can be an extraordinary patching partner, but today it still needs a skilled human at the keyboard.”

Tyler Reguly at Fortra says while reports of Microsoft patching hundreds of vulnerabilities in one go have prompted some organizations to try to patch faster, it’s important to bear in mind that only one of the almost 400 bugs addressed today is known to be actively exploited. Reguly suggested security leaders check in with their teams to see how they’re handling the increasing workloads, which often involve testing fixes before deploying them in production environments.

“If you’re a chief security officer talk to your teams about how they are shifting or modifying their workflows to better accommodate the patching shift that we’re seeing and support them across various organizational units by enabling the changes they want to see made,” Reguly said. “There’s no need to rush these updates, no matter what various vendors and organizations try to tell you. You need to make sure that you are rolling out safe updates that will not negatively impact your systems.”

Speaking of the humans behind the keyboards, don’t neglect to backup your system and/or data before applying this month’s monster patch load. The day after each month’s Patch Tuesday is sometimes derisively referred to as Reboot Wednesday, but it generally doesn’t hurt to wait a few days to apply these huge update bundles because it sometimes takes a couple of days for the occasional misbehaving patch to get ironed out properly by Microsoft.

For a clickable, per-patch breakdown by severity and urgency, check out this roundup from the SANS Internet Storm Center.

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