CVE-2025-21677

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 8.3% 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

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

2025-01-31 11:25Z1 YR AGO

Last updated

2026-08-05 11:53Z1 MO AGO

Reserved

2024-12-29

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

No CWE assigned

Data version

5.2

Document digest

4a1a243f78ba65b629f76daaf3a05bde12fbecd0f206f03b3e253420f0bde747

• git.kernel.orghttps://git.kernel.org/stable/c/1c35a66e2bfea53dea3562b2575ac7fd4c38ee61
• git.kernel.orghttps://git.kernel.org/stable/c/ffc90e9ca61b0f619326a1417ff32efd6cc71ed2