CVE-2025-40271

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

0.46% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 37.9% of scored records. A rank, not a probability.

NVD base score

7.8 (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:H/I:H/A:H

NVD analysis status

Deferred. 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

2025-12-06 21:50Z9 MO AGO

Last updated

2026-08-05 12:09Z29 DAYS AGO

Reserved

2025-04-16

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-825Expired Pointer DereferenceBase

Data version

5.2

Document digest

5e6569093c2d5331310127ea919d7b7d76ce4895fe457465a7b04ab96a1aa7e4

• git.kernel.orghttps://git.kernel.org/stable/c/1d1596d68a6f11d28f677eedf6cf5b17dbfeb491
• git.kernel.orghttps://git.kernel.org/stable/c/c81d0385500446efe48c305bbb83d47f2ae23a50
• git.kernel.orghttps://git.kernel.org/stable/c/4cba73c4c89219beef7685a47374bf88b1022369
• git.kernel.orghttps://git.kernel.org/stable/c/6f2482745e510ae1dacc9b090194b9c5f918d774
• git.kernel.orghttps://git.kernel.org/stable/c/67272c11f379d9aa5e0f6b16286b9d89b3f76046
• git.kernel.orghttps://git.kernel.org/stable/c/623bb26127fb581a741e880e1e1a47d79aecb6f8
• git.kernel.orghttps://git.kernel.org/stable/c/03de7ff197a3d0e17d0d5c58fdac99a63cba8110
• git.kernel.orghttps://git.kernel.org/stable/c/895b4c0c79b092d732544011c3cecaf7322c36a1
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-253495.html