CVE-2026-31679

HIGH EPSS 2.0%
Published Apr 25, 20262mo ago · Modified Jun 17, 20261w ago
7.1 CVSS 3.1
High
Find Similar
Published Apr 25, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: openvswitch: validate MPLS set/set_masked payload length validate_set() accepted OVS_KEY_ATTR_MPLS as variable-sized payload for SET/SET_MASKED actions. In action handling, OVS expects fixed-size MPLS key data (struct ovs_key_mpls). Use the already normalized key_len (masked case included) and reject non-matching MPLS action key sizes. Reject invalid MPLS action payload lengths early.

CVSS Details

Base Score
7.1
Exploitability
1.8
Impact
5.2
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
2.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 12

VendorProductVersionRange
linuxlinux_kernel*≥5.5  –  <5.10.253
linuxlinux_kernel*≥5.11  –  <5.15.203
linuxlinux_kernel*≥5.16  –  <6.1.168
linuxlinux_kernel*≥6.2  –  <6.6.131
linuxlinux_kernel*≥6.7  –  <6.12.80
linuxlinux_kernel*≥6.13  –  <6.18.21
linuxlinux_kernel*≥6.19  –  <6.19.11
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 8

  • git.kernel.org https://git.kernel.org/stable/c/2ca33b88a79ca42f017ae0f7011280325655438e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4cae986225f8b8679ad86b924918e7d75a96aa61
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/546b68ac893595877ffbd7751e5c55fd1c43ede6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/68f32ef0683c8d1c05cd2e4f16818fa63ff59c6f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8ed7b9930cbc3bc71f868fa79a68700ac88d586a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/98de18d327ef8cbbb704980e359e4872d8c28997
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bd50c7484c3bb34097571c1334174fb8b7408036
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c1f97152df8dfb17e855ddf0fc409b7bd13e9700
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/2ca33b88a79ca42f017ae0f7011280325655438e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4cae986225f8b8679ad86b924918e7d75a96aa61
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/546b68ac893595877ffbd7751e5c55fd1c43ede6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/68f32ef0683c8d1c05cd2e4f16818fa63ff59c6f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8ed7b9930cbc3bc71f868fa79a68700ac88d586a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/98de18d327ef8cbbb704980e359e4872d8c28997
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bd50c7484c3bb34097571c1334174fb8b7408036
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c1f97152df8dfb17e855ddf0fc409b7bd13e9700
    Patch