CVE-2025-21906

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 12.2% 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

2025-04-01 15:40Z1 YR AGO

Last updated

2026-08-05 11:55Z1 MO AGO

Reserved

2024-12-29

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.6)

CNA CVSS vector

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

Weaknesses

• CWE-665Improper InitializationClass

Data version

5.2

Document digest

f7bb51eaedceb47c99abb7ef25fc71177cfbc295b37d3d1a1df4b2469564241b

• git.kernel.orghttps://git.kernel.org/stable/c/a88c18409b5d69f426d5acc583c053eac71756a3
• git.kernel.orghttps://git.kernel.org/stable/c/d1a12fcb9051bbf38b2e5af310ffb102a0fab6f9
• git.kernel.orghttps://git.kernel.org/stable/c/f9751163bffd3fe60794929829f810968c6de73d