CVE-2026-31505

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

0.13% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 2.9% 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 2026-06-17.

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

2026-04-22 13:54Z4 MO AGO

Last updated

2026-08-05 12:23Z1 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-805Buffer Access with Incorrect Length ValueBase

Data version

5.2

Document digest

33c1bb72a501dbb9df9176459350a03141c1a7dbe94560d958d6e427fe134149

• git.kernel.orghttps://git.kernel.org/stable/c/1f931dee5b726df1940348ec31614d64bac03aa6
• git.kernel.orghttps://git.kernel.org/stable/c/bb85741d2dc2be207353a412f51b83697fcbefcf
• git.kernel.orghttps://git.kernel.org/stable/c/fdf902bf86a80bf15792a1d20a67a5302498d7f1
• git.kernel.orghttps://git.kernel.org/stable/c/fecacfc95f195b99c71c579a472120d0b4ed65fa