Linux Security
The latest Linux Security coverage — news, analysis, and updates from the WindowsNews.AI desk.
Critical Linux Kernel Flaw CVE-2026-63979: Why Windows Admins Must Patch Their Linux Workloads
A critical vulnerability in the Linux kernel's TLS handshake mechanism, tracked as CVE-2026-63979, was published on July 19, 2026, with a severity score of 9.8—the highest possible rating. The flaw...
CVE-2026-63882: A Missing Check in AMD’s Linux Kernel Driver Can Crash Your System
Linux kernel maintainers have patched a newly cataloged flaw in AMD’s GPU compute stack that can trigger an instant system crash. The vulnerability, tracked as CVE-2026-63882, was published on July...
Patch Now: AMDGPU Kernel Race Condition (CVE-2026-63879) Opens Linux Systems to Local Attacks
On July 19, 2026, the Linux kernel security team disclosed CVE-2026-63879, a high-severity vulnerability in the AMDGPU driver that could let a local attacker read or corrupt sensitive memory. The...
Patch Now: Linux Console Font Bug Unleashes Kernel Memory Leak (CVE-2026-53402)
A newly disclosed vulnerability in the Linux kernel’s framebuffer console can expose sensitive kernel memory to local users, all because a font change fails to clean up after itself. The flaw,...
WSL 2 Kernel Lags Behind Critical Linux IPv4 Out-of-Bounds Write Fix
On July 16, 2026, the National Vulnerability Database published CVE-2026-53366, detailing an out-of-bounds write flaw in the Linux kernel's IPv4 networking stack. The fix landed upstream weeks ago,...
Critical Linux Kernel Bug Exposes WSL2 and Container Hosts — Patch Now
A newly disclosed Linux kernel vulnerability, tracked as CVE-2026-43499 and named GhostLock, lets attackers break out of sandboxes and seize root control of affected systems. The flaw reaches beyond...
Linux Kernel Race in nvmet-tcp Threatens Windows NVMe-oF Storage Infrastructure
A critical race condition in the Linux kernel’s nvmet-tcp subsystem, assigned CVE-2026-46135, has quietly emerged as a significant threat to Windows-centric data centers. Microsoft’s Security...
Microsoft flags Linux AMDGPU memory leak that drains system resources each resume cycle
Microsoft has added a seemingly minor Linux kernel bug to its Security Update Guide this week, drawing attention to a vulnerability that affects AMD-powered machines running the company’s...
CVE-2026-40372: ASP.NET Core DataProtection Vulnerability Exposes Runtime Secrets on Linux
Microsoft's April 2026 security disclosure revealed CVE-2026-40372, a critical vulnerability in ASP.NET Core DataProtection that exposes runtime secrets when applications run on Linux systems. This...
CVE-2026-40372: Critical ASP.NET Core Data Protection Vulnerability Exposes Linux Applications
Microsoft has disclosed CVE-2026-40372, a critical vulnerability in ASP.NET Core's Data Protection system that specifically impacts Linux deployments. The security flaw allows attackers to bypass...
CVE-2026-27456: Critical TOCTOU Race Condition in Linux mount Utility Explained
Microsoft's security advisory for CVE-2026-27456 reveals a critical Time-of-Check-Time-of-Use (TOCTOU) vulnerability in the util-linux mount utility that affects Linux systems, including those...
CVE-2026-4897: Polkit DoS Vulnerability Threatens Linux Systems with Complete Availability Loss
A critical denial-of-service vulnerability in polkit, designated CVE-2026-4897, exposes Linux systems to complete availability loss through unbounded stdin input. The flaw allows unprivileged local...