Linux Kernel Archives • Daily CyberSecurity

CVE-2026-64560: Linux Kernel CPU Timer Use-After-Free Gives a Root Shell, PoC Exploit Code Publicly Disclosed

Linux kernel CPU timer flaw CVE-2026-64560 use-after-free giving a root shell, with public PoC exploit code

CVE-2026-64560: Linux Kernel CPU Timer Use-After-Free Gives a Root Shell, PoC Exploit Code Publicly Disclosed

Do Son August 12, 2026

TL;DR A Linux kernel CPU timer flaw lets a local user reach root. Tracked as CVE-2026-64560, it...

CVE-2026-43074: Linux Kernel eventpoll Use-After-Free Gives a Root Shell, PoC Exploit Code Publicly Disclosed Linux kernel eventpoll flaw CVE-2026-43074 use-after-free giving a root shell, with public PoC exploit code

Linux kernel eventpoll flaw CVE-2026-43074 use-after-free giving a root shell, with public PoC exploit code

CVE-2026-43074: Linux Kernel eventpoll Use-After-Free Gives a Root Shell, PoC Exploit Code Publicly Disclosed

Do Son August 10, 2026

TL;DR A Linux kernel eventpoll flaw lets a local user climb to root. Tracked as CVE-2026-43074, it...

CVE-2026-64564: SCTP Flaw Enables Container Escape Linux SCTP kernel use-after-free CVE-2026-64564 privilege escalation and container-to-host escape diagram

Linux SCTP kernel use-after-free CVE-2026-64564 privilege escalation and container-to-host escape diagram

CVE-2026-64564: SCTP Flaw Enables Container Escape

Do Son August 10, 2026

TL;DR A Linux kernel use-after-free in SCTP, tracked as CVE-2026-64564, allows local attackers to gain root. Researchers...

Tails 7.10.1 Fixes Critical Linux Kernel Vulnerability Tails 7.10.1 emergency release fixing Linux kernel CVE-2026-64560 and expat library vulnerability

Tails 7.10.1 emergency release fixing Linux kernel CVE-2026-64560 and expat library vulnerability

Tails 7.10.1 Fixes Critical Linux Kernel Vulnerability

Do Son August 7, 2026

The Tails project shipped Tails 7.10.1 as an emergency release on August 5, 2026. This update addresses...

CVE-2026-64561: Zapscape KVM Escape Runs Commands With Kernel Root Privilege, PoC Exploit Code Publicly Disclosed KVM escape vulnerability Zapscape CVE-2026-64561 running commands with kernel root privilege, with public PoC exploit code

KVM escape vulnerability Zapscape CVE-2026-64561 running commands with kernel root privilege, with public PoC exploit code

CVE-2026-64561: Zapscape KVM Escape Runs Commands With Kernel Root Privilege, PoC Exploit Code Publicly Disclosed

Do Son August 7, 2026

TL;DR Security researcher Hyunwoo Kim (@v4bel) disclosed a KVM escape vulnerability named Zapscape. Tracked as CVE-2026-64561, it...

Linux Kernel Flaw CVE-2026-53264 Lets Local Users Execute Arbitrary Code, PoC Published Linux kernel vulnerability CVE-2026-53264 net/sched use-after-free enabling arbitrary code execution

Linux kernel vulnerability CVE-2026-53264 net/sched use-after-free enabling arbitrary code execution

Linux Kernel Flaw CVE-2026-53264 Lets Local Users Execute Arbitrary Code, PoC Published

Do Son August 4, 2026

TL;DR A new Linux kernel vulnerability, tracked as CVE-2026-53264, lets a local user run arbitrary code and...

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....

OVSwrap local root vulnerability CVE-2026-64531 in the Linux kernel Open vSwitch datapath

OVSwrap Local Root Vulnerability (CVE-2026-64531): Exploit Details and PoC Publicly Disclosed

Do Son July 28, 2026

TL;DR The OVSwrap local root flaw lets an unprivileged user gain root on many Linux systems. It...

RefluXFS CVE-2026-64600: XFS Root Privilege Escalation Hits 16.4M Systems RefluXFS CVE-2026-64600 XFS privilege escalation to root diagram showing a reflink direct-I/O race overwriting a protected file across 16.4 million Linux systems

RefluXFS CVE-2026-64600 XFS privilege escalation to root diagram showing a reflink direct-I/O race overwriting a protected file across 16.4 million Linux systems

RefluXFS CVE-2026-64600: XFS Root Privilege Escalation Hits 16.4M Systems

Do Son July 22, 2026

TL;DR Qualys disclosed RefluXFS on July 22, 2026. Tracked as CVE-2026-64600, it is a Linux kernel XFS...

OVH Patches CVE-2026-53359 KVM Flaw Across a Million VMs OVH data center engineers patching CVE-2026-53359 KVM vulnerability across thousands of hypervisor hosts

OVH data center engineers patching CVE-2026-53359 KVM vulnerability across thousands of hypervisor hosts

OVH Patches CVE-2026-53359 KVM Flaw Across a Million VMs

Do Son July 21, 2026

European cloud provider OVH just published a candid retrospective on its emergency patch campaign. The post explains...

Linux Kernel Publishes 440 CVE Advisories in 24 Hours as AI Accelerates Bug Hunting 440 Linux kernel CVEs published in 24 hours amid AI-driven vulnerability discovery

440 Linux kernel CVEs published in 24 hours amid AI-driven vulnerability discovery

Linux Kernel Publishes 440 CVE Advisories in 24 Hours as AI Accelerates Bug Hunting

Do Son July 21, 2026

Artificial intelligence now hunts vulnerabilities far faster than human security researchers. In recent months, AI models have...

Exploited in the Wild? Debian Webhost Rooted as Public PoCs Land for Bad Epoll (CVE-2026-46242) and IPv6 Frag Escape Bad Epoll CVE-2026-46242 Linux kernel privilege escalation use-after-free public PoC exploit

Bad Epoll CVE-2026-46242 Linux kernel privilege escalation use-after-free public PoC exploit

Exploited in the Wild? Debian Webhost Rooted as Public PoCs Land for Bad Epoll (CVE-2026-46242) and IPv6 Frag Escape

Do Son July 14, 2026

TL;DR Two Linux kernel flaws now have public proof-of-concept exploit code and full technical write-ups. Bad Epoll...

Public Exploit and Details Released for Bad Epoll Root Flaw (CVE-2026-46242) Bad Epoll CVE-2026-46242 Linux kernel use-after-free enabling root privilege escalation

Bad Epoll CVE-2026-46242 Linux kernel use-after-free enabling root privilege escalation

Public Exploit and Details Released for Bad Epoll Root Flaw (CVE-2026-46242)

Do Son July 14, 2026

TL;DR Bad Epoll is a Linux kernel use-after-free that turns any unprivileged user into root. It is...

Linux kernel FUSE local privilege escalation via CVE-2026-31694 page cache overflow

Public PoC Discloses CVE-2026-31694, a Linux Kernel FUSE Local Privilege Escalation

Do Son July 10, 2026

TL;DR Researchers have published full details and working exploit code for CVE-2026-31694. This Linux kernel FUSE bug...

Linux kernel privilege escalation CVE-2026-46215 DRM GEM use-after-free root exploit diagram

Linux Kernel Privilege Escalation Flaw CVE-2026-46215: PoC and Full Write-Up Public

Do Son July 9, 2026

TL;DR A researcher has published a full technical write-up and proof-of-concept exploit for a Linux kernel privilege...

Android remote root exploit chain PoC by Nebula

Android Remote Root Exploit Chain Unveiled by Nebula

Do Son July 8, 2026

Cybersecurity firm Nebula recently unveiled a demonstration video exposing a critical kernel-level vulnerability and remote privilege escalation...

Public Exploit for GhostLock (CVE-2026-43499) Enables Linux Privilege Escalation and Container Escape GhostLock CVE-2026-43499 Linux kernel privilege escalation and container escape exploit chain

GhostLock CVE-2026-43499 Linux kernel privilege escalation and container escape exploit chain

Public Exploit for GhostLock (CVE-2026-43499) Enables Linux Privilege Escalation and Container Escape

Do Son July 8, 2026

TL;DR Researchers have published full details and proof-of-concept code for GhostLock. This Linux kernel bug, tracked as...

Linux kernel vulnerability CVE-2024-26582 TLS use-after-free root shell exploit diagram

Linux Kernel Vulnerability CVE-2024-26582: Public PoC Reaches Root Shell

Do Son July 7, 2026

TL;DR Researchers have published full technical details and proof-of-concept exploit code for a Linux kernel vulnerability tracked...

kernel.org Outage: Config Error Wipes All Linux Kernel Files kernel.org outage HTTP 404 error caused by Linux Foundation mirror configuration failure

kernel.org outage HTTP 404 error caused by Linux Foundation mirror configuration failure

kernel.org Outage: Config Error Wipes All Linux Kernel Files

Do Son July 3, 2026

Yesterday, reports emerged that kernel.org had deleted all hosted kernel files. Every archived and current kernel package...

DirtyClone Linux Kernel Flaw Lets Local Users Get Root DirtyClone Linux kernel privilege escalation flaw CVE-2026-43503 page cache exploit

DirtyClone Linux Kernel Flaw Lets Local Users Get Root

Do Son June 28, 2026

TL;DR DirtyClone is a Linux kernel privilege escalation flaw tracked as CVE-2026-43503. It scores 8.8 on the...

Ubuntu Livepatch Now Supports Arm64 for Rebootless Kernel Updates Ubuntu Livepatch Arm64 support applying rebootless Linux kernel security updates on Ubuntu Core 26 servers Ubuntu 26.10 release