CVE-2025-39873

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

0.16% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 5.2% 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

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2025-09-23 06:00Z11 MO AGO

Last updated

2026-08-05 12:05Z1 MO 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-416Use After FreeVariant

Data version

5.2

Document digest

70ebe3106832f4c5092cce415ff07facfa75ed512bca8ebbb8700e0eec5df499

• git.kernel.orghttps://git.kernel.org/stable/c/e202ffd9e54538ef67ec301ebd6d9da4823466c9
• git.kernel.orghttps://git.kernel.org/stable/c/1139321161a3ba5e45e61e0738b37f42f20bc57a
• git.kernel.orghttps://git.kernel.org/stable/c/94b050726288a56a6b8ff55aa641f2fedbd3b44c
• git.kernel.orghttps://git.kernel.org/stable/c/725b33deebd6e4c96fe7893f384510a54258f28f
• git.kernel.orghttps://git.kernel.org/stable/c/668cc1e3bb21101d074e430de1b7ba8fd10189e7
• git.kernel.orghttps://git.kernel.org/stable/c/ef79f00be72bd81d2e1e6f060d83cf7e425deee4
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/10/msg00008.html