CVE-2025-21738

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

0.22% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 12.3% 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

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 02:12Z1 YR AGO

Last updated

2026-08-05 11:54Z1 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

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass

Data version

5.2

Document digest

34c5e5b536f392ba0cf62a806e67c7975234bd3a6a5a551cadb099fd3c77ab20

• git.kernel.orghttps://git.kernel.org/stable/c/a8f8cf87059ed1905c2a5c72f8b39a4f57b11b4c
• git.kernel.orghttps://git.kernel.org/stable/c/d5e6e3000309359eae2a17117aa6e3c44897bf6c
• git.kernel.orghttps://git.kernel.org/stable/c/0dd5aade301a10f4b329fa7454fdcc2518741902
• git.kernel.orghttps://git.kernel.org/stable/c/0a17a9944b8d89ef03946121241870ac53ddaf45
• git.kernel.orghttps://git.kernel.org/stable/c/6e74e53b34b6dec5a50e1404e2680852ec6768d2
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/03/msg00028.html