check-cve-2026-23111

CVE-2026-23111 Defensive Validation Script Overview CVE-2026-23111 is a Linux kernel vulnerability in nftables that can be exploited for local privilege escalation by an unprivileged user on systems where user namespaces and nftables are available.12 Public vendor and government advisories descri...

CVE-2024-1086

CVE-2024-1086 Universal local privilege escalation Proof-of-Concept exploit for CVE-2024-1086, working on most Linux kernels between v5.14 and v6.6, including Debian, Ubuntu, and KernelCTF. The success rate is 99.4% in KernelCTF images...

CVE-2024-1086

CVE-2024-1086 Universal local privilege escalation Proof-of-Concept exploit for CVE-2024-1086, working on most Linux kernels between v5.14 and v6.6, including Debian, Ubuntu, and KernelCTF. The success rate is 99.4% in KernelCTF images. Affected versions The exploit affects versions from includin...

tools-for-CVE-2018-1000001

Tools for CVE-2018-1000001 Check vulnerability: $ cat /proc/sys/kernel/unprivilegedusernsclone Output: 1 If file "/proc/sys/kernel/unprivilegedusernsclone" does not exists: $ unshare -mU /bin/sh -c "sleep 5" & /bin/sh -c "sleep 1; cd /proc/$!/cwd; realpath .; kill -9 $!" The output must contain t...

CVE-2015-1328

CVE-2015-1328 Prueba de Concepto Un exploit de Prueba de Concepto PoC para CVE-2015-1328, una vulnerabilidad de escalada de privilegios que afecta la implementación de overlayfs del kernel de Linux. Esta vulnerabilidad permite a usuarios locales sin privilegios obtener acceso root explotando...

CIFSwitch-Checker-CVE-2026-46243

CIFSwitch Checker - CVE-2026-46243 Checker para Linux que permite identificar configuraciones potencialmente vulnerables a la vulnerabilidad CIFSwitch CVE-2026-46243. No explota la vulnerabilidad ni modifica el sistema. El objetivo principal es ayudar a identificar equipos potencialmente afectado...

CVE-2021-3493

CVE-2021-3493 Escalada local de privilegios en OverlayFS de Ubuntu Versiones afectadas Ubuntu 20.10 Ubuntu 20.04 LTS Ubuntu 18.04 LTS Ubuntu 16.04 LTS Ubuntu 14.04 ESM Uso gcc exploit.c -o exploit chmod +x exploit ./exploit Descripción Problema específico de Ubuntu en el sistema de archivos...

DeepRoot

CVE-2021-3493 Comprehensive Exploit Framework $\colorFF4D2E \textbf\textsfDeepRoot$ OverlayFS Capability Privilege Escalation Framework - Red Team Professional Edition Overview DeepRoot framework is a comprehensive privilege escalation exploit for CVE-2021-3493 OverlayFS Privilege Escalation with...

CVE-2022-2588

CVE-2022-2588 The fix The bug is fixed in Linux v5.19 by this commit. The bug The bug was introduced in Linux v3.17 by this commit back to 2014. It requires User Namespaces to trigger. This bug is very similar to CVE-2021-3715, which was caused by improper operation on the route4filter's linked...

CVE-2021-3493

CVE-2021-3493 Escalada de privilegios local en OverlayFS de Ubuntu Versiones Afectadas Ubuntu 20.10 Ubuntu 20.04 LTS Ubuntu 19.04 Ubuntu 18.04 LTS Ubuntu 16.04 LTS Ubuntu 14.04 ESM Uso gcc exploit.c -o exploit ./exploit Descripción "Problema específico de Ubuntu en el sistema de archivos overlayf...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: AppArmor: Fixed the issue by limiting the number of levels of policy namespaces. Currently, the number of policy namespaces is not bounded, relying on the user namespace limits. However, policy namespaces are not strictly tied to...

Astra Linux – Vulnerability in Linux, Linux 5.10

A heap-based buffer overflow flaw was discovered in the way the legacyparseparam function in the Linux kernel’s Filesystem Context functionality verifies the length of the supplied parameters. A non-privileged user if non-privileged user namespaces are enabled, otherwise requiring CAPSYSADMIN...

Astra Linux – Vulnerability in Linux

The overlayfs implementation in the Linux kernel failed to properly validate, regarding user namespaces, the setting of file capabilities on files in the underlying file system. Due to the combination of unprivileged user namespaces and a patch carried in the Ubuntu kernel that allows unprivilege...

CVE-2026-68335

In the Linux kernel, the following vulnerability has been resolved: rds: drop incoming messages that cross network namespace boundaries rdsfindbound looks up the destination socket using a global rhashtable keyed solely on addr, port, scopeid. Network namespaces are not part of the key, so a send...

CVE-2026-68186

In the Linux kernel, the following vulnerability has been resolved: binfmtmisc: set haveexecfd only once the interpreter is opened loadmiscbinary raises bprm-haveexecfd as soon as it sees the 'O' or 'C' flag. This happens well before it opens the interpreter. If that open fails the flag stays set...

EUVD-2026-55287

In the Linux kernel, the following vulnerability has been resolved: binfmtmisc: set haveexecfd only once the interpreter is opened loadmiscbinary raises bprm-haveexecfd as soon as it sees the 'O' or 'C' flag. This happens well before it opens the interpreter. If that open fails the flag stays set...

CVE-2026-68186: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: binfmtmisc: set haveexecfd only once the interpreter is opened loadmiscbinary raises bprm-haveexecfd as soon as it sees the 'O' or 'C' flag. This happens well before it opens the interpreter. If that open fails the flag stays set...

PT-2026-69735

Name of the Vulnerable Software and Affected Versions Linux kernel versions 3.8 and later affected versions not specified Description A use-after-free issue exists in the Reliable Datagram Sockets RDS implementation. The rds find bound function uses a global rhastable keyed by address, port, and...

CVE-2026-68335: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: rds: drop incoming messages that cross network namespace boundaries rdsfindbound looks up the destination socket using a global rhashtable keyed solely on addr, port, scopeid. Network namespaces are not part of the key, so a send...

K000162733: Linux kernel vulnerability CVE-2026-23111

Security Advisory Description In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: fix inverted genmask check in nftmapcatchallactivate nftmapcatchallactivate has an inverted element activity check compared to its non-catchall counterpart nftmapelemactivate and...