CVE-2025-21986

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

0.15% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 4.4% 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 2026-06-17.

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

2025-04-01 15:47Z1 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-667Improper LockingClass
• CWE-833DeadlockBase

Data version

5.2

Document digest

aed92c60a1448dbeba0f0dbc032f01b93eb5c4c4804bd51589ec88a258cf505c

• git.kernel.orghttps://git.kernel.org/stable/c/af757f5ee3f754c5dceefb05c12ff37cb46fc682
• git.kernel.orghttps://git.kernel.org/stable/c/1f7d051814e7a0cb1f0717ed5527c1059992129d
• git.kernel.orghttps://git.kernel.org/stable/c/a597d4b75669ec82c72cbee9fe75a15d04b35b2b
• git.kernel.orghttps://git.kernel.org/stable/c/f9ed3fb50b872bd78bcb01f25087f9e4e25085d8
• git.kernel.orghttps://git.kernel.org/stable/c/62531a1effa87bdab12d5104015af72e60d926ff
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/05/msg00045.html