CVE-2025-21876

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

0.21% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 11.5% 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

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

Red Hat severity

Low. 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

2025-03-27 14:57Z1 YR AGO

Last updated

2026-08-05 11:55Z1 MO AGO

Reserved

2024-12-29

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

No CWE assigned

Data version

5.2

Document digest

fccc976c545e1343a9f40e428502d41582bfa8a430efc9b5c0f25d858fe6ff7d

• git.kernel.orghttps://git.kernel.org/stable/c/4117c72938493a77ab53cc4b8284be8fb6ec8065
• git.kernel.orghttps://git.kernel.org/stable/c/c603ccbe91d189849e1439134598ec567088dcec
• git.kernel.orghttps://git.kernel.org/stable/c/b150654f74bf0df8e6a7936d5ec51400d9ec06d8