CVE-2025-39843

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

0.11% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 1.8% 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

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

2026-05-12 12:07Z3 MO AGO

Reserved

2025-04-16

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

aa44d93bf9dcfbd403cdce050af1e450f818dc93ab8b33b31b90af0918ef1b4d

• git.kernel.orghttps://git.kernel.org/stable/c/994b03b9605d36d814c611385fbf90ca6db20aa8
• git.kernel.orghttps://git.kernel.org/stable/c/522ffe298627cfe72539d72167c2e20e72b5e856
• git.kernel.orghttps://git.kernel.org/stable/c/243b705a90ed8449f561a271cf251fd2e939f3db
• git.kernel.orghttps://git.kernel.org/stable/c/eb3240ffd243bfb8b1e9dc568d484ecf9fd660ab
• git.kernel.orghttps://git.kernel.org/stable/c/850470a8413a8a78e772c4f6bd9fe81ec6bd5b0f
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-032379.html