CVE-2025-21959

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.43% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 35.5% 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

2025-04-01 15:46Z1 YR AGO

Last updated

2026-08-05 11:55Z1 MO AGO

Reserved

2024-12-29

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.3)

CNA CVSS vector

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

Weaknesses

• CWE-908Use of Uninitialized ResourceBase

Data version

5.2

Document digest

cdeaf615f1a320b57623a296fe509228c826ae7ddb4ba7d7157201935c556b80

• git.kernel.orghttps://git.kernel.org/stable/c/f522229c5563b59b4240261e406779bba6754159
• git.kernel.orghttps://git.kernel.org/stable/c/2a154ce766b995494e88d8d117fa82cc6b73dd87
• git.kernel.orghttps://git.kernel.org/stable/c/e8544a5a97bee3674e7cd6bf0f3a4af517fa9146
• git.kernel.orghttps://git.kernel.org/stable/c/a62a25c6ad58fae997f48a0749afeda1c252ae51
• git.kernel.orghttps://git.kernel.org/stable/c/fda50302a13701d47fbe01e1739c7a51114144fb
• git.kernel.orghttps://git.kernel.org/stable/c/db1e0c0856821c59a32ea3af79476bf20a6beeb2
• git.kernel.orghttps://git.kernel.org/stable/c/2db5baaf047a7c8d6ed5e2cc657b7854e155b7fc
• git.kernel.orghttps://git.kernel.org/stable/c/d653bfeb07ebb3499c403404c21ac58a16531607
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-019113.html