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Linux Kernel Race Bug Lets Attackers Steal SSH Keys and /etc/shadow
A Linux kernel ptrace flaw enables local attackers to exploit a race condition and duplicate privileged file descriptors, exposing sensitive data such as SSH private keys and shadow password files across major distributions.
Source: Orca Security
Read more: CyberSecBrief
Windows Zero-Days Break BitLocker and Unlock SYSTEM Control
Two Windows zero-days enable attackers to bypass BitLocker protection during reboot and escalate to SYSTEM privileges through memory object abuse in Windows 11 and Server systems. The flaws, tracked as YellowKey and GreenPlasma, require physical access or local execution but fully compromise system security once triggered.
Source: SecurityWeek | BlackFort TEC | GitHub (Nightmare-Eclipse)
Read more: CyberSecBrief
Any Linux User Can Become Root Thanks to a Flaw Hiding Since 2017
Nine vulnerabilities in Linux's AppArmor security module — present since kernel version 4.11 — allow any unprivileged local user to escalate to root, crash the system, or break out of containers on Ubuntu, Debian, and SUSE systems.
Source: Qualys
Read more: CyberSecBrief
Linux Kernel Turns Dangerous: Fragnesia Lets Attackers Become Root
A newly disclosed Linux kernel flaw allows attackers to corrupt memory in network processing paths and instantly escalate from local access to full root privileges. The issue affects systems using XFRM ESP-in-TCP handling and can overwrite critical cached data such as /usr/bin/su during exploitation.
Source: Wiz Research | V12 Security
Read more: CyberSecBrief
Dirty Frag Linux Bugs Hand Over Full Root Access
A set of Linux kernel flaws known as Dirty Frag lets attackers escalate privileges to root on major distributions using crafted network and memory operations. Researchers show unprivileged users can abuse kernel components to gain full system control, with patched kernels already released for affected platforms.
Source: CloudLinux | AlmaLinux
Read more: CyberSecBrief
Linux “Copy Fail” Bug Quietly Hands Attackers Root Access
A stealthy Linux kernel flaw lets attackers rewrite memory without touching files, giving unprivileged users full root control across major distributions and even enabling container escapes.
Source: Copy Fail | Xint Code
Read more: CyberSecBrief
Microsoft Fixes Critical Windows Admin Center Privilege Flaw
CVE-2026-26119 in Windows Admin Center allowed low-privileged users to gain administrative rights; the vulnerability has been patched in version 2511.
Source: The Hacker News | Microsoft Security Response Center
Read more: CyberSecBrief
Linux Kernel Flaw Added to Exploited Vulnerabilities List
CISA added CVE-2026-31431 in the Linux kernel to its KEV catalogue after confirming active exploitation enabling local privilege escalation attacks. Federal agencies are required to remediate the flaw under Binding Operational Directive 22-01 to reduce exposure to ongoing intrusion attempts.
Source: Cybersecurity and Infrastructure Security Agency
Read more: CyberSecBrief
