CVE-2025-21756: linux kernel from 5.5 (inclusive), before 5.10.235 (exclusive), from 5.11 (inclusive), before 5.15.179 (exclusive)…

Affected technology

linux kernel · from 5.5 (inclusive), before 5.10.235 (exclusive)
linux

linux kernel · from 5.11 (inclusive), before 5.15.179 (exclusive)
linux

linux kernel · from 5.16 (inclusive), before 6.1.131 (exclusive)
linux

linux kernel · from 6.2 (inclusive), before 6.6.79 (exclusive)
linux

linux kernel · from 6.7 (inclusive), before 6.12.16 (exclusive)
linux

linux kernel · from 6.13 (inclusive), before 6.13.4 (exclusive)
linux

Linux · c0cfa2d8a788fcf45df5bf4070ab2474c88d543a to before e7754d564579a5db9c5c9f74228df5d6dd6f1173, c0cfa2d8a788fcf45df5bf4070ab2474c88d543a to before e48fcb403c2d0e574c19683f09399ab4cf67809c, c0cfa2d8a788fcf45df5bf4070ab2474c88d543a to before 42b33381e5e1f2b967dc4fb4221ddb9aaf10d197, c0cfa2d8a788fcf45df5bf4070ab2474c88d543a to before 3f43540166128951cc1be7ab1ce6b7f05c670d8b, c0cfa2d8a788fcf45df5bf4070ab2474c88d543a to before 645ce25aa0e67895b11d89f27bb86c9d444c40f8, c0cfa2d8a788fcf45df5bf4070ab2474c88d543a to before b1afd40321f1c243cffbcf40ea7ca41aca87fa5e, c0cfa2d8a788fcf45df5bf4070ab2474c88d543a to before fcdd2242c0231032fc84e1404315c245ae56322a
Linux

Linux · 5.5
Linux

SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · V3.1.5 to before *
Siemens

SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · V3.1.5 to before *
Siemens

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

SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · V3.1.5 to before *
Siemens

Component: Not specified by the source
File: net/vmw_vsock/af_vsock.c

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

What an attacker can do

Source advisory’s CVSS 3.1 assessment (base score 7.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.