CVE-2026-23111

CVE-2026-23111 PoC Linux Kernel nftables Use-After-Free Local Privilege Escalation poc by baba01hacker Vulnerability Summary CVE : CVE-2026-23111 Type : Use-After-Free CWE-416 CVSS : 7.8 HIGH Component : net/netfilter/nftablesapi.c — nftmapcatchallactivate Root Cause : Inverted genmask check caus...

CVE-2026-23111-POC-noddlenpottato

CVE-2026-23111 — noddlenpottato nftables catchall UAF → unprivileged LPE. user to root on most 5.10—6.18 linux kernels. auto-adapts to the target kernel — detects struct offsets, resolves symbols, finds ROP gadgets, determines slab cache, generates tailored exploit, compiles and runs. nftables...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftsetrbtree: Fixed an issue with overlapping expiration walks. The lazy garbage collection during insertion, which should remove entries when the timeout occurs, fails to properly release the remaining part of the...

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...

Siemens RUGGEDCOM RST2428P Improper Input Validation (CVE-2026-23111)

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 compared to what is logically...

SUSE-SU-2026:21098-1 Security update for the Linux Kernel (Live Patch 5 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.26.1 fixes various security issues The following security issues were fixed: - CVE-2026-23074: net/sched: Enforce that teql can only be used as root qdisc bsc1258051. - CVE-2026-23111: netfilter: nftables: fix inverted genmask check i...

SUSE-SU-2026:21070-1 Security update for the Linux Kernel (Live Patch 16 for SUSE Linux Enterprise Micro 6.0)

This update for the SUSE Linux Enterprise Kernel 6.4.0-39.1 fixes various security issues The following security issues were fixed: - CVE-2026-23074: net/sched: Enforce that teql can only be used as root qdisc bsc1258051. - CVE-2026-23111: netfilter: nftables: fix inverted genmask check in...

AZL-77483 CVE-2026-23111 affecting package kernel for versions less than 6.6.126.1-1

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 compared to what is logically...

UBUNTU-CVE-2026-23111

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 compared to what is logically...

CVE-2026-23111

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 compared to what is logically...

CVE-2026-23111 netfilter: nf_tables: fix inverted genmask check in nft_map_catchall_activate()

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 compared to what is logically...

CVE-2026-23111 netfilter: nf_tables: fix inverted genmask check in nft_map_catchall_activate()

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 compared to what is logically...

CVE-2026-23111 netfilter: nf_tables: fix inverted genmask check in nft_map_catchall_activate()

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 compared to what is logically...

CVE-2026-23111

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 compared to what is logically...

CVE-2023-53304

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetrbtree: fix overlap expiration walk The lazy gc on insert that should remove timed-out entries fails to release the other half of the interval, if any. Can be reproduced with...

CVE-2023-53304 netfilter: nft_set_rbtree: fix overlap expiration walk

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetrbtree: fix overlap expiration walk The lazy gc on insert that should remove timed-out entries fails to release the other half of the interval, if any. Can be reproduced with...

CVE-2023-53304 netfilter: nft_set_rbtree: fix overlap expiration walk

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetrbtree: fix overlap expiration walk The lazy gc on insert that should remove timed-out entries fails to release the other half of the interval, if any. Can be reproduced with...