CVE-2025-21972: linux kernel from 5.15 (inclusive), before 6.12.20 (exclusive), from 6.13 (inclusive), before 6.13.8 (exclusive), 6.14…

Affected technology

linux kernel · from 5.15 (inclusive), before 6.12.20 (exclusive)
linux

linux kernel · from 6.13 (inclusive), before 6.13.8 (exclusive)
linux

linux kernel · 6.14 · update rc1
linux

linux kernel · 6.14 · update rc2
linux

linux kernel · 6.14 · update rc3
linux

linux kernel · 6.14 · update rc4
linux

linux kernel · 6.14 · update rc5
linux

linux kernel · 6.14 · update rc6
linux

Linux · 4a992bbd365094730a31bae1e12a6ca695336d57 to before 3d0281d0713952e8dd14d6d47e3a9c345c28a3b7, 4a992bbd365094730a31bae1e12a6ca695336d57 to before 5c47d5bfa7b096cf8890afac32141c578583f8e0, 4a992bbd365094730a31bae1e12a6ca695336d57 to before f44fff3d3c6cd67b6f348b821d73c4d6888c7a6e, 4a992bbd365094730a31bae1e12a6ca695336d57 to before f5d83cf0eeb90fade4d5c4d17d24b8bee9ceeecc
Linux

Linux · 5.15
Linux

Component: Not specified by the source
File: net/mctp/route.c, net/mctp/test/route-test.c

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

Attack conditions (NVD, 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 8.8/10) rates confidentiality, integrity and availability impact as high. 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.