CVE-2025-40176

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

0.43% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 35.4% of scored records. A rank, not a probability.

NVD base score

9.8 (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:H/I:H/A:H

NVD analysis status

Deferred. NVD last modified this record on 2026-07-30.

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

2025-11-12 10:53Z9 MO AGO

Last updated

2026-08-05 12:08Z1 MO AGO

Reserved

2025-04-16

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

• CWE-825Expired Pointer DereferenceBase

Data version

5.2

Document digest

91c29c1f42b6f16143c48b50d1a295c2fd6ee6610c41a4f47b81a813187731d2

• git.kernel.orghttps://git.kernel.org/stable/c/9f83fd0c179e0f458e824e417f9d5ad53443f685
• git.kernel.orghttps://git.kernel.org/stable/c/c61d4368197d65c4809d9271f3b85325a600586a
• git.kernel.orghttps://git.kernel.org/stable/c/39dec4ea3daf77f684308576baf483b55ca7f160
• git.kernel.orghttps://git.kernel.org/stable/c/4fc109d0ab196bd943b7451276690fb6bb48c2e0
• git.kernel.orghttps://git.kernel.org/stable/c/b8a6ff84abbcbbc445463de58704686011edc8e1