CVE-2026-31731

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 2.6% 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

Modified. 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

2026-05-01 14:14Z4 MO AGO

Last updated

2026-08-05 12:24Z1 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-416Use After FreeVariant
• CWE-825Expired Pointer DereferenceBase

Data version

5.2

Document digest

6cd72578f7563997a7fe693458312c747689ff45c8135c3eff7f66dbe9c14f2c

• git.kernel.orghttps://git.kernel.org/stable/c/1a6d2b001eb730d85f00da39ae7db6f3b4edc540
• git.kernel.orghttps://git.kernel.org/stable/c/2dbe93f344f10b432b95a23304006be805c097a1
• git.kernel.orghttps://git.kernel.org/stable/c/c4593f1654f7dea3bcf9bb1851ded86311d4f370
• git.kernel.orghttps://git.kernel.org/stable/c/45b859b0728267a6199ee5002d62e6c6f3e8c89d