CVE-2026-31438

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

0.12% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 2.3% of scored records. A rank, not a probability.

NVD base score

5.5 (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:N/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

2026-04-22 13:53Z4 MO AGO

Last updated

2026-05-11 22:08Z3 MO AGO

Reserved

2026-03-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-476NULL Pointer DereferenceBase
• CWE-843Access of Resource Using Incompatible Type ('Type Confusion')Base

Data version

5.2

Document digest

08c8d4f7899522d9250a560828ffbad2ece5d58ca3455181df8d57e41be79862

• git.kernel.orghttps://git.kernel.org/stable/c/18c2e20b42dd21db599e42d05ddaeeb647b2bb6d
• git.kernel.orghttps://git.kernel.org/stable/c/4bc2d72c7695cedf6d4e1a558924903c2b28a78e
• git.kernel.orghttps://git.kernel.org/stable/c/00d6df7115f6972370974212de9088087820802e
• git.kernel.orghttps://git.kernel.org/stable/c/67e467a11f62ff64ad219dc6aa5459e132c79d14