The post Embargo Broken: Public PoC Released for “Dirty Frag” Linux Kernel Exploit Granting Instant Root Access appeared first on Daily CyberSecurity. Related posts: Copy Fail: Public PoC and Full Details Disclosed for the 732-Byte Linux Root Exploit (CVE-2026-31431) Linux Kernel Flaw (CVE-2025-38236): Privilege Escalation Risk, PoC Code Available Splunk Windows Flaws Expose Servers to System Takeover

Copy Fail (CVE-2026-31431) is a critical Linux kernel LPE that allows stealthy root access. This flaw impacts millions of systems. Read our analysis. The post Copy Fail: What You Need to Know About the Most Severe Linux Threat in Years appeared first on Unit 42.

The post Microsoft Defender Zero-Day “BlueHammer” Hits KEV Catalog Following Researcher’s Protest appeared first on Daily CyberSecurity. Related posts: BlueHammer: Researcher Drops Functional 0-Day Exploit Targeting Windows Defender RedSun: New Windows Defender Zero-Day Turns Protector into Attacker, PoC Publishes Zero-Day Alert: The “Red Sun” Vulnerability Turning Microsoft Defender into a Hacker’s Tool

The post Zero-Day Alert: The “Red Sun” Vulnerability Turning Microsoft Defender into a Hacker’s Tool appeared first on Daily CyberSecurity. Related posts: PoC Exploit Publicly Disclosed: ‘RegPwn’ Flaw Grants SYSTEM Access via Windows Accessibility Microsoft’s June 2025 Patch Tuesday: 2 Zero-Days, 69 Vulnerabilities Patched! Stealth Falcon Exploits New Zero-Day (CVE-2025-33053) in Sophisticated Cyberespionage Campaign