CVE-2026-31401

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.14% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 3.4% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-07-24.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-04-03 15:16Z5 MO AGO

Last updated

2026-08-05 12:22Z1 MO AGO

Reserved

2026-03-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

• CWE-787Out-of-bounds WriteBase
• CWE-131Incorrect Calculation of Buffer SizeBase

Data version

5.2

Document digest

fc9e33e677e7561511fb9b629012215bf8c9c460b171b5002a9c2a18289a58ef

• git.kernel.orghttps://git.kernel.org/stable/c/d6efaa50af62fb0790dd1fd4e7e5506b46312510
• git.kernel.orghttps://git.kernel.org/stable/c/73c5b5aea1c443239c8cb4191b4af7a4bd6fd7b1
• git.kernel.orghttps://git.kernel.org/stable/c/eb57dae20fdf6f3069cdc07821fa3bb46de381d7
• git.kernel.orghttps://git.kernel.org/stable/c/2b658c1c442ec1cd9eec5ead98d68662c40fe645