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CVE-2025-21839: linux kernel 5.7; +1 more affected products

CVE-2025-21839. CVSS 3.1 base score 5.5 (MEDIUM, NVD). EPSS 0.0023 (percentile 0.12781), scored 14-Oct-2026.

Affected technology

linux kernel · from 5.7.1 (inclusive), before 5.15.182 (exclusive)
linux

linux kernel · from 5.16 (inclusive), before 6.1.138 (exclusive)
linux

linux kernel · from 6.2 (inclusive), before 6.6.90 (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 kernel · 5.7
linux

linux kernel · 5.7 · update rc6
linux

linux kernel · 5.7 · update rc7
linux

linux kernel · 6.14 · update rc1
linux

linux kernel · 6.14 · update rc2
linux

Linux · d67668e9dd76d98136048935723947156737932b to before 9efb2b99b96c86664bbdbdd2cdb354ac9627eb20, d67668e9dd76d98136048935723947156737932b to before 93eeb6df1605b3a24f38afdba7ab903ba6b64133, d67668e9dd76d98136048935723947156737932b to before a1723e9c53fe6431415be19302a56543daf503f5, d67668e9dd76d98136048935723947156737932b to before 4eb063de686bfcdfd03a8c801d1bbe87d2d5eb55, d67668e9dd76d98136048935723947156737932b to before d456de38d9eb753a4e9fde053c18d4ef8e485339, d67668e9dd76d98136048935723947156737932b to before c2fee09fc167c74a64adb08656cb993ea475197e
Linux

Linux · 5.7
Linux

Component: Not specified by the source
File: arch/x86/include/asm/kvm-x86-ops.h, arch/x86/include/asm/kvm_host.h, arch/x86/kvm/svm/svm.c, arch/x86/kvm/vmx/main.c, arch/x86/kvm/vmx/vmx.c, arch/x86/kvm/vmx/x86_ops.h, arch/x86/kvm/x86.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 7.3/10) rates confidentiality impact as none; integrity impact as low; 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.

Published

CCR priority
22.1 /100 (P4)
CVSS 3.1
5.5 /10 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · NVD
EPSS
0.0023 · percentile 0.12781 · 2026-10-14
KEV
no

Provenance

Stable permalink: https://cybercodered.org/item/cve-cve-2025-21839.html