CVE-2025-21813

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

0.19% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 8.6% 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

2025-02-27 20:04Z1 YR AGO

Last updated

2026-05-23 15:57Z3 MO AGO

Reserved

2024-12-29

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-193Off-by-one ErrorBase
• CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class

Data version

5.2

Document digest

3ed02e22c0d398fe4f45ad4360d3210fb0027a295759043dcacdbf823ab37b78

• git.kernel.orghttps://git.kernel.org/stable/c/c6dd70e5b465a2b77c7a7c3d868736d302e29aec
• git.kernel.orghttps://git.kernel.org/stable/c/6f449d8fa1808a7f9ee644866bbc079285dbefdd
• git.kernel.orghttps://git.kernel.org/stable/c/868c9037df626b3c245ee26a290a03ae1f9f58d3