CVE-2026-31631

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

0.39% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 31.6% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. 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

2026-04-24 14:44Z4 MO AGO

Last updated

2026-08-05 12:23Z1 MO AGO

Reserved

2026-03-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.2)

CNA CVSS vector

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

Weaknesses

• CWE-787Out-of-bounds WriteBase
• CWE-805Buffer Access with Incorrect Length ValueBase

Data version

5.2

Document digest

7aadc50f00995812420f1b795bd03c9891b7ae04bcbac628833d466ce68b013d

• git.kernel.orghttps://git.kernel.org/stable/c/794586789800b16dcbe235452494f4223ac80413
• git.kernel.orghttps://git.kernel.org/stable/c/1c4422d8be81718ecb15d79aedff607323085201
• git.kernel.orghttps://git.kernel.org/stable/c/f564af387c8c28238f8ebc13314c589d7ba8475d