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operating system security | Breaking Cybersecurity News | The Hacker News

Category — operating system security
Anthropic's Unreleased AI Model Chains Flaws Into Working Chrome, Safari, Windows and Linux Exploits

Anthropic's Unreleased AI Model Chains Flaws Into Working Chrome, Safari, Windows and Linux Exploits

Oct 28, 2026 Artificial Intelligence / Web Security
An unreleased Anthropic AI model found security flaws in Chrome, Safari, Android, Windows, and Linux and chained them into working proof-of-concept exploits, the company said in its latest report. The exploits were built in the lab after the model was prompted, not seen in any real attack, and Anthropic reported every flaw to the vendor first, so all of them are already patched. One proof of concept opened the Calculator app on a stock Mac running Chrome within seconds of a page loading, with no further clicks. Anthropic's Frontier Red Team described five chains in a research post. The strongest claim is not any single bug, but that one model found several separate flaws and combined them into a working exploit, something the company says has until now been the work of a few specialist teams. That capability claim rests on Anthropic's own account. The patches and the fact that Apple and Google credit Anthropic and its Claude model for specific fixes can be verified with...
Apple Backports Fix for Exploited CoreGraphics Flaw to Older iPhones and iPads

Apple Backports Fix for Exploited CoreGraphics Flaw to Older iPhones and iPads

Oct 27, 2026 Vulnerability / Mobile Security
Apple on Monday backported fixes for a high-severity security flaw that was exploited in real-world cyber attacks to older devices. The vulnerability, tracked as CVE-2026-86950 (CVSS score: 8.8), is an out-of-bounds write affecting CoreGraphics that could result in arbitrary code execution when processing a maliciously crafted file. Patches for the flaw were released last month by Apple in versions iOS 26.7.1, iPadOS 26.7.1, macOS Tahoe 26.7.1, and macOS Sequoia 15.8.1, acknowledging that it may have been exploited in sophisticated attacks against specific individuals using devices running iOS before iOS 27. The fixes have now been expanded to include iOS 18.7.11 and iPadOS 18.7.11, which support iPhone XS, iPhone XS Max, iPhone XR, iPad 7th generation, iPad Air 4th generation and later, iPad 9th generation and later, and iPad mini 6th generation and later. "Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against ...
Researchers Demonstrate OpenBSD Root Exploit Chaining 37-Year-Old Shared-Memory Bug

Researchers Demonstrate OpenBSD Root Exploit Chaining 37-Year-Old Shared-Memory Bug

Oct 16, 2026 Vulnerability / OpenBSD
A local privilege escalation exploit published today gains root on OpenBSD 7.9 by chaining a roughly 37-year-old integer overflow with a separate kernel flaw, bypassing OpenBSD's KARL kernel-address randomization and its SMAP and SMEP hardware protections. Security firm Calif, which found and reported the flaws, published a detailed writeup and full proof-of-concept code after OpenBSD shipped patches for both issues in September. The integer overflow in the shmat(4) attach function was fixed in errata 018 , shipped September 14 as a reliability fix. The reference-counting use-after-free that completes the chain was fixed separately in errata 026, shipped September 30 as a security fix. Both are available through syspatch and cover all architectures. OpenBSD 7.8 also received the integer-overflow fix. The integer overflow, the entry point for the full chain, is classified as a reliability fix, not a security fix. No CVE has been assigned for either flaw as of publication. ...
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Windows Downgrade Attack Risks Exposing Patched Systems to Old Vulnerabilities

Windows Downgrade Attack Risks Exposing Patched Systems to Old Vulnerabilities

Aug 08, 2024 Windows Security / Vulnerability
Microsoft said it is developing security updates to address two loopholes that it said could be abused to stage downgrade attacks against the Windows update architecture and replace current versions of the operating system files with older versions. The vulnerabilities are listed below - CVE-2024-38202 (CVSS score: 7.3) - Windows Update Stack Elevation of Privilege Vulnerability CVE-2024-21302 (CVSS score: 6.7) - Windows Secure Kernel Mode Elevation of Privilege Vulnerability Credited with discovering and reporting the flaws is SafeBreach Labs researcher Alon Leviev, who presented the findings at Black Hat USA 2024 and DEF CON 32 . CVE-2024-38202, which is rooted in the Windows Backup component, allows an "attacker with basic user privileges to reintroduce previously mitigated vulnerabilities or circumvent some features of Virtualization Based Security (VBS)," the tech giant said. It, however, noted that an attacker attempting to leverage the flaw would have to c...
Reminder: Microsoft to end support for Windows 7 in 1-year from today

Reminder: Microsoft to end support for Windows 7 in 1-year from today

Jan 15, 2019
A new reminder for those who are still holding on to the Windows 7 operating system—you have one year left until Microsoft ends support for its 9-year-old operating system. So it's time for you to upgrade your OS and say goodbye to Windows 7, as its five years of extended support will end on January 14, 2020—that's precisely one year from today. After that date, the tech giant will no longer release free security updates, bug fixes and new functionalities for the operating system that's still widely used by people, which could eventually leave a significant number of users more susceptible to malware attacks. However, the end of free support doesn't end Windows 7 support for big business and enterprise customers. As always, Microsoft does make exceptions for certain companies that are willing to pay a lot of money to continue their support. According to a 'Death of Windows 7' report from content delivery firm Kollective, as many as 43% of enterprises ...
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