CVE-2026-31644

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

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

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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 12:24Z1 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

6583da7d518e7d93add0dfbc10fae1b6b4f58a4037f4faebc20436ab3c18cba3

• git.kernel.orghttps://git.kernel.org/stable/c/691082c0b93c13a5e068c0905f673060bddc204e
• git.kernel.orghttps://git.kernel.org/stable/c/92a673019943770930e2a8bfd52e1aad47a1fc1f
• git.kernel.orghttps://git.kernel.org/stable/c/9950e9199b3dfdfbde0b8d96ba947d7b11243801
• git.kernel.orghttps://git.kernel.org/stable/c/59c3d55a946cacdb4181600723c20ac4f4c20c84