CVE-2025-39864

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 ImpacttotalSuccessful exploitation gives total 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

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 13.5% 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

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

2025-09-19 15:26Z11 MO AGO

Last updated

2026-08-05 12:05Z1 MO AGO

Reserved

2025-04-16

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

• CWE-416Use After FreeVariant

Data version

5.2

Document digest

c11a6a86cc797711a50053f3ca915dc3a263165b93ed07854ae718dbcf6660d9

• git.kernel.orghttps://git.kernel.org/stable/c/a8bb681e879ca3c9f722aa08d3d7ae41c42a8807
• git.kernel.orghttps://git.kernel.org/stable/c/a97a9791e455bb0cd5e7a38b5abcb05523d4e21c
• git.kernel.orghttps://git.kernel.org/stable/c/ff040562c10a540b8d851f7f4145fa112977f853
• git.kernel.orghttps://git.kernel.org/stable/c/6854476d9e1aeaaf05ebc98d610061c2075db07d
• git.kernel.orghttps://git.kernel.org/stable/c/b7d08929178c16398278613df07ad65cf63cce9d
• git.kernel.orghttps://git.kernel.org/stable/c/5b7ae04969f822283a95c866967e42b4d75e0eef
• git.kernel.orghttps://git.kernel.org/stable/c/912c4b66bef713a20775cfbf3b5e9bd71525c716
• git.kernel.orghttps://git.kernel.org/stable/c/26e84445f02ce6b2fe5f3e0e28ff7add77f35e08
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-089022.html
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-032379.html