CVE-2026-43383: linux kernel from 2.6.20 (inclusive), before 5.10.253 (exclusive), from 5.11 (inclusive), before 6.1.167 (exclusive)…

Affected technology

linux kernel · from 2.6.20 (inclusive), before 5.10.253 (exclusive)
linux

linux kernel · from 5.11 (inclusive), before 6.1.167 (exclusive)
linux

linux kernel · from 6.2 (inclusive), before 6.6.130 (exclusive)
linux

linux kernel · from 6.7 (inclusive), before 6.12.78 (exclusive)
linux

linux kernel · from 6.13 (inclusive), before 6.18.19 (exclusive)
linux

linux kernel · from 6.19 (inclusive), before 6.19.9 (exclusive)
linux

linux kernel · 7.0 · update rc1
linux

linux kernel · 7.0 · update rc2
linux

Linux · cfb6eeb4c860592edd123fdea908d23c6ad1c7dc to before 821c8751fdeecdeecabeb11704dd33439c9e4bbc, cfb6eeb4c860592edd123fdea908d23c6ad1c7dc to before ff44ec94d4fc8348600a69de0a8fa1102c23bce8, cfb6eeb4c860592edd123fdea908d23c6ad1c7dc to before 345a9530756528d7ca407663d659c3c40e75c3dd, cfb6eeb4c860592edd123fdea908d23c6ad1c7dc to before 5d305a95130a8d08b9545e47f1e18d29d59866cb, cfb6eeb4c860592edd123fdea908d23c6ad1c7dc to before 02669e2a4d207068edce7e8b5fafd85822018ce6, cfb6eeb4c860592edd123fdea908d23c6ad1c7dc to before ae3831b44f477de048287493e184fc3ff913b624, cfb6eeb4c860592edd123fdea908d23c6ad1c7dc to before b502e97e29d791ff7a8051f29a414535739be218, cfb6eeb4c860592edd123fdea908d23c6ad1c7dc to before 46d0d6f50dab706637f4c18a470aac20a21900d3
Linux

Linux · 2.6.20
Linux

Component: Not specified by the source
Function: for
File: net/ipv4/Kconfig, net/ipv4/tcp.c, net/ipv4/tcp_ipv4.c, net/ipv6/tcp_ipv6.c

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Source advisory’s CVSS 3.1 assessment (base score 9.4/10) rates confidentiality impact as low; integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.