CVE-2026-53349: linux kernel from 2.6.20 (inclusive), before 6.1.176 (exclusive), from 6.2 (inclusive), before 6.6.143 (exclusive)…

Affected technology

linux kernel · from 2.6.20 (inclusive), before 6.1.176 (exclusive)
linux

linux kernel · from 6.2 (inclusive), before 6.6.143 (exclusive)
linux

linux kernel · from 6.7 (inclusive), before 6.12.94 (exclusive)
linux

linux kernel · from 6.13 (inclusive), before 6.18.36 (exclusive)
linux

linux kernel · from 6.19 (inclusive), before 7.0.13 (exclusive)
linux

linux kernel · 7.1 · update rc1
linux

linux kernel · 7.1 · update rc2
linux

linux kernel · 7.1 · update rc3
linux

linux kernel · 7.1 · update rc4
linux

linux kernel · 7.1 · update rc5
linux

linux kernel · 7.1 · update rc6
linux

linux kernel · 7.1 · update rc7
linux

Linux · f587de0e2feb9eb9b94f98d0a7b7437e4d6617b4 to before fbfde85308b99938a6092c48753214d190ece48d, f587de0e2feb9eb9b94f98d0a7b7437e4d6617b4 to before 29d8cc44bbdf7b83a1929912214afe6643c1b4f1, f587de0e2feb9eb9b94f98d0a7b7437e4d6617b4 to before f92c90a2a3e6ff6f9f7fe88fde9004b4ca8f956d, f587de0e2feb9eb9b94f98d0a7b7437e4d6617b4 to before 9d017671dcfcec23321fb7962dea624f9e71ddb1, f587de0e2feb9eb9b94f98d0a7b7437e4d6617b4 to before bf8c0b5dd203be94c2ad50e264cec19267c6bd39, f587de0e2feb9eb9b94f98d0a7b7437e4d6617b4 to before c3009418f9fa1dcb3eb86f4d8c92583537b5faa3
Linux

Linux · 2.6.20
Linux

SIMATIC S7-1500 TM MFP - GNU/Linux subsystem · 0 to before *
Siemens

Component: Not specified by the source
File: include/net/netfilter/nf_conntrack_helper.h, net/ipv4/netfilter/nf_nat_h323.c, net/netfilter/nf_conntrack_helper.c, net/netfilter/nf_nat_core.c, net/netfilter/nf_nat_sip.c

Attack conditions (NVD, CVSS 3.1): Local · Low privileges required · No user interaction required

What an attacker can do

NVD’s CVSS 3.1 assessment (base score 5.5/10) rates confidentiality and integrity impact as none; availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.