CVE-2026-23121: linux kernel from 2.6.27 (inclusive), before 5.10.249 (exclusive), from 5.11 (inclusive), before 5.15.199 (exclusive)…

Affected technology

linux kernel · from 2.6.27 (inclusive), before 5.10.249 (exclusive)
linux

linux kernel · from 5.11 (inclusive), before 5.15.199 (exclusive)
linux

linux kernel · from 5.16 (inclusive), before 6.1.162 (exclusive)
linux

linux kernel · from 6.2 (inclusive), before 6.6.122 (exclusive)
linux

linux kernel · from 6.7 (inclusive), before 6.12.68 (exclusive)
linux

linux kernel · from 6.13 (inclusive), before 6.18.8 (exclusive)
linux

linux kernel · 6.19 · update rc1
linux

linux kernel · 6.19 · update rc2
linux

linux kernel · 6.19 · update rc3
linux

linux kernel · 6.19 · update rc4
linux

linux kernel · 6.19 · update rc5
linux

linux kernel · 6.19 · update rc6
linux

Linux · 1b2b03f8e514e4f68e293846ba511a948b80243c to before d5d99cb9e0839093cd53aa3b28176fce2f820ca0, 1b2b03f8e514e4f68e293846ba511a948b80243c to before 13f3b3b87068898056db4c79ee67052fbde11d43, 1b2b03f8e514e4f68e293846ba511a948b80243c to before accc3f8266d2a49881dbcf78c459477f4efa0ff3, 1b2b03f8e514e4f68e293846ba511a948b80243c to before fc8ba17fd3337bd8b1913c30b95df0fee00d8fb7, 1b2b03f8e514e4f68e293846ba511a948b80243c to before aa6e33cd74ca4965f2bbcb025e0b672fb0168a69, 1b2b03f8e514e4f68e293846ba511a948b80243c to before 7ac345a93af31358e18e9606eb7b354691bf6757, 1b2b03f8e514e4f68e293846ba511a948b80243c to before 8175dbf174d487afab81e936a862a8d9b8a1ccb6
Linux

Linux · 2.6.27
Linux

Component: Not specified by the source
File: drivers/isdn/mISDN/timerdev.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.