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/r/netsec - Information Security News & Discussion
- ASUS bsitf.sys (CVE-2026-13585): Arbitrary Physical Memory Mapping via Unvalidated IOCTL
Hereβs the Truth About Whether Metaβs NameTag Face Recognition Tech βExistsβ
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Security β Cisco Blog
- We third-party tested our firewall built for AI-scale. The test tools hit their limit first.
We third-party tested our firewall built for AI-scale. The test tools hit their limit first.
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/r/netsec - Information Security News & Discussion
- HN Security - My Semgrep C/C++ ruleset is ready for prime time again
HN Security - My Semgrep C/C++ ruleset is ready for prime time again
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/r/netsec - Information Security News & Discussion
- The Memory Heist - How I tricked Claude into leaking your deepest, darkest secrets
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/r/netsec - Information Security News & Discussion
- (More) Unauthenticated Arbitrary Code Execution in ServiceNow
(More) Unauthenticated Arbitrary Code Execution in ServiceNow
Forgotten UEFI shims undermining Secure Boot
Weekly Update 512: IoT Lockout Fail
"Build a smart home", they said. "It'll make life so much better", they said. Well, life wasn't very bloody good at 23:00 the other night after travelling 33 hours from Paris only to find the IoT doorlock batteries dead and the 9V "jump start" procedure completely failing! Eventually, the locksmith arrived and opened an old-school physical lock on another door in an alarmingly short time. So, lessons:
- Battery-powered locks suck and will eventually lock you out of your house
- Don't trust a fallback mechanism as rudimentary as "hold a 9V battery on some terminals"
- Always have an old school manual backup approach, AKA "a key"
As I say in the video, we do have other doors that have keys, and if it weren't for the complacency we developed, we would have had one of these accessible. But alas, we didn't. The path forward is to take a deep dive into Ubiquiti's Access ecosystem, which I've flagged in the past, and by pure coincidence, I already had a meeting lined up with them to discuss just this. So, the hardware is on the way, and I'll have something entirely new to play with in the coming weeks. Stay tuned!
I tested the Ultrahuman Ring Pro: Rich in features, but still a hard sell
Microsoft Patches a Record 570 Security Flaws
Microsoft Corp. today released software updates to plug at least 570 security holes in its Windows operating systems and other software, almost triple the number of vulnerabilities the software giant fixed in its record-smashing Patch Tuesday release last month. Microsoft attributed the burgeoning patch counts to vulnerability discoveries aided by artificial intelligence.
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Nearly 60 of the bugs quashed in Julyβs Patch Tuesday earned a βcriticalβ severity rating, meaning miscreants or malware could use them to seize remote control over a Windows device with little or no help from the user. Microsoft also addressed three zero-day flaws, including two that are already being exploited in the wild.
Two of the zero-day weaknesses allow an attacker to elevate their user rights on a Windows system, as do approximately 250 other elevation of privilege flaws fixed this month; they include CVE-2026-56155 β an Active Directory Federation Services bug β and CVE-2026-56164, a Microsoft Sharepoint vulnerability.
CVE-2026-50661 is a security feature bypass in Windows BitLocker that could allow attackers to gain access to encrypted data if they have physical access to the device. Microsoft said this bug has been detailed publicly, but that it is not aware of any active exploitation.
In a blog post on July 9, Microsoft Executive Vice President Pavan Davuluri wrote that Windows users will notice βa higher volume of security updates included in each security releaseβ as a result of AI aiding in the discovery of vulnerabilities.
βThe pace of vulnerability discovery is changing with advances in AI making it possible to find more issues, faster, across more code, with new mechanisms that can accelerate both discovery and analysis,β Davuluri wrote.
Jack Bicer, director of vulnerability research at Action1, called attention to CVE-2026-48561, a remote code execution flaw in Microsoft Copilot (with a 9.6 CVSS threat score) that allows an unauthorized attacker to execute code over the network. Microsoft says an attacker could exploit this bug by hosting a malicious website that causes Microsoft Edge for Android to automatically send crafted prompts to Copilot when a user visits the site.
As AI advances the state of vulnerability discovery and remediation, it is also making it easier for attackers to quickly devise working exploits for known software flaws. Microsoft has long labeled security bugs using its βexploitability index,β which is Redmondβs best guess as to how likely it is that attackers will be able to figure out a reliable way to exploit a given vulnerability.
But Satnam Narang, senior staff research engineer at Tenable, argues that Microsoftβs exploitability index needs to do a better job of shifting with the machine speed of discovery. For example, Microsoft originally gave this monthβs SharePoint zero-day an exploitability rating of βless likely,β although the flaw was added to CISAβs Known Exploited Vulnerabilities list on July 1.
βAnthropicβs Red Teamβs own findings for known vulnerabilities (n-days) revealed how fragile this system has become, with its Mythos Preview model being able to produce proof-of-concept exploits for 13 of 14 vulnerabilities that were rated βExploitation Less Likelyβ or βExploitation Unlikely,'β Narang said. βWhat this means is that our way of looking at Patch Tuesday has changed, because the exploitability index is centered around humans, not AI tools, and as these tools continue to improve, defense needs to improve alongside it.β
Chris Goettl at Ivanti observed that the record patch numbers from Microsoft come as a number of other major software makers are increasing their patch cadence, including Adobe which announced today it is moving to twice-monthly security bulletins published on the 2nd and 4th Tuesday of each month (Adobe also cited AI for accelerating their patch cycles). Cisco, Mozilla and Oracle also are shipping updates more frequently, while Googleβs patch batches in June 2026 totaled more than 900 security fixes, Goettl noted.
Backing up your Windows system and/or data is always a good idea before applying operating system updates. Given the volume of patches addressed this month it may be wise for end users to wait a few days before applying these fixes. Itβs not uncommon for security patches to introduce system stability issues, and those chances probably increase quite a bit with the gigantic patch count released today.
Further reading:
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/r/netsec - Information Security News & Discussion
- Source-reviewing 200+ self-hosted multi-tenant AI/SaaS apps for tenant isolation: 78 leaked across tenants (the "un-retrofitted read sibling")
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/r/netsec - Information Security News & Discussion
- How an Infostealer Infection Led to a Sophisticated ClickFix Campaign at Artlist
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/r/netsec - Information Security News & Discussion
- Smashing the ServiceNow Sandbox β Pre Authentication RCE
Smashing the ServiceNow Sandbox β Pre Authentication RCE
When LLMs do more than they have to
I wanted to build an HTML file with Claude. And it started a Node server to open it. And there was a Directory Traversal as well there. Always review what agents / LLMs do
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Writing an Evasive .NET Shellcode Loader
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/r/netsec - Information Security News & Discussion
- Enhancing IIoT Security Using Digital Twins in Industry
Enhancing IIoT Security Using Digital Twins in Industry
The AI research centre at Torrens University Australia has helped produce a review of 110 studies on digital twins and IIoT security.
What were the main takeaways? They have found that DTs are shifting away from passive monitoring to being a part of the defence architecture.
One of the biggest weak points they found was in legacy sensors with low bandwidth. In these situations, there is a lag before the digital twin reflects a real-world change, and that lag is where attacks tend to slip in.
Would be interested to hear your thoughts! Has anyone here dealt with that sync-gap problem on older hardware?
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/r/netsec - Information Security News & Discussion
- AXON Body camera 3 of 4 hardware reverse cracking output videoοΌ
AXON Body camera 3 of 4 hardware reverse cracking output videoοΌ
Recently, I saw someone selling a well-known second-hand market in China. Except for some functions that need to be connected to networking, the 4th generation is used normally. However, because AXON is not in the Chinese market, most of them purchase the activated version from eBay and then reverse. Will such a problem lead to the body camera video of some American enterprises and some unpublished videos of the police will be leaked. Then he sells these body3 and 4th generations at prices ranging from 1,000 dollars and about 1,500 US dollars respectively, and gives a unique software to read and delete it. The question is whether it is feasible or not, but it is not fake to see the real shot.
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/r/netsec - Information Security News & Discussion
- ExporTheft: 11 "AI Chat Exporter" Chrome extensions upload full chat content on PDF export, while the store listing says "No uploads to external servers"
ExporTheft: 11 "AI Chat Exporter" Chrome extensions upload full chat content on PDF export, while the store listing says "No uploads to external servers"
Family of 11 same-codebase extensions (ChatGPT/Claude/Gemini/etc), ~5.5k users on the main one. Sold as local-only: the store listing says "No uploads to external servers," "Everything processed locally," "No tracking or telemetry."
Observed in the tested version:
- PDF export POSTs the full conversation to the developer's Cloud Run backend. A local renderer is bundled but only runs as a fallback.
- Markdown/Text/JSON exports beacon title + source URL to /api/usage. The title is derived from your first message, so it can contain chat content.
- Every request carries an X-Client-ID in chrome.storage.sync, so it follows you across machines.
Detection + full writeup: https://malext.io/reports/ExporTheft/
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/r/netsec - Information Security News & Discussion
- Context Bombs: Using AI Guardrails as a defensive mechanism
Context Bombs: Using AI Guardrails as a defensive mechanism
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/r/netsec - Information Security News & Discussion
- CET-Compliant Callstack Spoofing via Thread Pool & Enum Callback Trampolining (Rust PoC)
CET-Compliant Callstack Spoofing via Thread Pool & Enum Callback Trampolining (Rust PoC)
I wrote this after spending an unreasonable amount of time making CET-compliant callstack spoofing work end-to-end on hardware with Intel CET enabled.
The technique combines three primitives: thread pool execution for a clean stack base, enum callback trampolining for a real signed mid-stack frame, and indirect syscalls.
The actual contribution is the CET compliance mechanism: a jmp-based context switch combined with direct shadow stack pointer reconciliation via RDSSPQ/INCSSPQ, without touching unwind metadata. Different approach from BYOUD.
Implemented in Rust with inline assembly.
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