CVE-2025-21976: linux kernel from 3.10 (inclusive), before 6.12.20 (exclusive), from 6.13 (inclusive), before 6.13.8 (exclusive), 6.14…

Affected technology

linux kernel · from 3.10 (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 · 68a2d20b79b105f02dcbc52c211d7e62f98996b7 to before 4545e2aa121aea304d33903099c03e29ed4fe50a, 68a2d20b79b105f02dcbc52c211d7e62f98996b7 to before a7b583dc99c6cf4a96877017be1d08247e1ef2c7, 68a2d20b79b105f02dcbc52c211d7e62f98996b7 to before ea2f45ab0e53b255f72c85ccd99e2b394fc5fceb
Linux

Linux · 3.10
Linux

Component: Not specified by the source
File: drivers/video/fbdev/hyperv_fb.c

Attack conditions (Source advisory, CVSS 3.1): Local · Low 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 7.8/10) 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.