Kernel Security Archives • Daily CyberSecurity

FreeBSD Patches Eight Kernel Vulnerabilities FreeBSD security advisories patching eight kernel vulnerabilities including use-after-free local privilege escalation flaws CVE-2026-58090

FreeBSD security advisories patching eight kernel vulnerabilities including use-after-free local privilege escalation flaws CVE-2026-58090

FreeBSD Patches Eight Kernel Vulnerabilities

Do Son August 26, 2026

TL;DR The FreeBSD Project released six security advisories on August 25, 2026. Together they fix eight vulnerabilities...

BTR.sys Driver Abuse Turns Defender Into an EDR/AV Bypass Diagram of BTR.sys driver abuse showing the signed Defender remediation driver used as an EDR/AV bypass kernel primitive

Diagram of BTR.sys driver abuse showing the signed Defender remediation driver used as an EDR/AV bypass kernel primitive

BTR.sys Driver Abuse Turns Defender Into an EDR/AV Bypass

Do Son August 25, 2026

At a Glance Research BTR Reforged (Check Point Research) Component BTR.sys, the Windows Defender Boot-Time Removal driver...

Linux Kernel 7.2 Arrives with Extensive Updates Linux Kernel 7.2 release graphic showing hardware driver and security updates

Linux Kernel 7.2 Arrives with Extensive Updates

Do Son August 18, 2026

Following rigorous testing across multiple release candidates, developers have officially launched the stable version of Linux Kernel...

Debian 13 Kernel Update Fixes 68 Flaws, Four Rated Critical Debian 13 Linux kernel security update DSA-6405-1 fixing 68 vulnerabilities including four critical use-after-free flaws in net/sched, NVMe/TCP, and SMC-R

Debian 13 Linux kernel security update DSA-6405-1 fixing 68 vulnerabilities including four critical use-after-free flaws in net/sched, NVMe/TCP, and SMC-R

Debian 13 Kernel Update Fixes 68 Flaws, Four Rated Critical

Do Son August 3, 2026

The Debian project has published security advisory DSA-6405-1, delivering a new Linux kernel update for Debian 13....

PoC Exploit Code Publicly Released: New “PinTheft” Linux Flaw Overwrites Page Cache for Instant Root PinTheft Linux Exploit Linux LPE PoC Disclosed

PinTheft Linux Exploit Linux LPE PoC Disclosed

PoC Exploit Code Publicly Released: New “PinTheft” Linux Flaw Overwrites Page Cache for Instant Root

Do Son May 20, 2026

A newly detailed vulnerability known as “PinTheft” is giving Linux system administrators serious pause. Discovered by Aaron...

Linux Kernel 7.0 Arrives: A Massive Overhaul for System Stability and Security Linus Torvalds AI bug reports Linux Kernel 7.0 Linux EFI Zboot - CVE-2022-42719 Linux KVM Intel AMX kernel panic, KVM guest host crash 2025

Linus Torvalds AI bug reports Linux Kernel 7.0 Linux EFI Zboot - CVE-2022-42719 Linux KVM Intel AMX kernel panic, KVM guest host crash 2025

Linux Kernel 7.0 Arrives: A Massive Overhaul for System Stability and Security

Do Son April 13, 2026

The inaugural major kernel release of 2026, Linux Kernel 7.0, has officially been unveiled. Adhering to the...

Code in the Wild: Full Technical Deep-Dive and Public GitHub PoC Released for Critical Linux TLS Root Exploit CIFSwitch local root exploit cifs-utils privilege escalation Linux Kernel Root Exploit CVE-2025-39946 PoC CVE-2023-2598 PoC Ubuntu LPE Vulnerability CVE-2026-3888

CIFSwitch local root exploit cifs-utils privilege escalation Linux Kernel Root Exploit CVE-2025-39946 PoC CVE-2023-2598 PoC Ubuntu LPE Vulnerability CVE-2026-3888

Code in the Wild: Full Technical Deep-Dive and Public GitHub PoC Released for Critical Linux TLS Root Exploit

Do Son March 25, 2026

Security researcher Ramdhan at StarLabs has published a deep-dive technical analysis of a critical vulnerability in the...

Deep Kernel Fix: Linux Closes a 5-Year-Old Flaw in x86 Memory Handling Linux Kernel legacy driver removal Linux kernel x86 page fault, interrupt state asymmetry fix Linux ISO, false positive CVE-2023-6200 - Linux Kernel 6.12 LTS 6.14

Linux Kernel legacy driver removal Linux kernel x86 page fault, interrupt state asymmetry fix Linux ISO, false positive CVE-2023-6200 - Linux Kernel 6.12 LTS 6.14

Deep Kernel Fix: Linux Closes a 5-Year-Old Flaw in x86 Memory Handling

Do Son January 25, 2026

A profound vulnerability has been unearthed within the Linux kernel, having languished for years in one of...

HTTP.sys RCE vulnerability, Windows HTTP stack exploit, CVE-2026-47291 Netlogon RCE vulnerability Exploited in the wild Secure Boot certificate renewal 2026, Windows 11 UEFI update Community-First AI Infrastructure, Microsoft self-funding energy mandate aka.ms/aoh online portal CVE-2025-55681, Windows DWM Elevation Windows Administrator Protection, CVE-2025-60718 Microsoft AI Compute, IREN Infrastructure Microsoft Japan PPA, Renewable Energy Microsoft AI Investment, Cloud Expansion Microsoft Azure, Startup Credits Infinite Workday, AI in Work Microsoft Russia, Bankruptcy AI code generation, Microsoft AI Microsoft Layoffs, Restructuring

Windows DWM Flaw Lets Local Users Paint Their Way to SYSTEM Privileges, PoC Publishes

Do Son December 23, 2025

A newly discovered vulnerability in the heart of the Windows visual experience has been patched by Microsoft,...

Researcher Details Zero-Day Linux/Android Kernel Flaw (CVE-2025-38352) Linux Timer TOCTOU, CVE-2025-38352

Researcher Details Zero-Day Linux/Android Kernel Flaw (CVE-2025-38352)

Do Son October 3, 2025

Security researcher StreyPaws has published an in-depth analysis of CVE-2025-38352, a Time-of-Check to Time-of-Use (TOCTOU) race condition...

PoC Released: Linux Kernel Flaw Allows User to Gain Root Privileges CrackArmor AppArmor Vulnerabilities Linux Kernel UAF, Privilege Escalation PoC CVE-2024-27397 PoC

CrackArmor AppArmor Vulnerabilities Linux Kernel UAF, Privilege Escalation PoC CVE-2024-27397 PoC

PoC Released: Linux Kernel Flaw Allows User to Gain Root Privileges

Do Son October 2, 2025

Security researcher Huyinhao has published a deep-dive analysis of CVE-2025-21701, a newly disclosed Linux kernel vulnerability rated...