CVE-2025-40303

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

0.14% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 3.5% 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

Deferred. NVD last modified this record on 2026-07-30.

Red Hat severity

Low. 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

2025-12-08 00:46Z9 MO AGO

Last updated

2026-08-05 12:09Z1 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-459Incomplete CleanupBase

Data version

5.2

Document digest

4afd4169c78c4964232c090f6893236d8becc4aff52de49b3b39e33fd9d8c4bc

• git.kernel.orghttps://git.kernel.org/stable/c/066ee13f05fbd82ada01883e51f0695172f98dff
• git.kernel.orghttps://git.kernel.org/stable/c/e2b3859067bf012d53c49b3f885fef40624a2c83
• git.kernel.orghttps://git.kernel.org/stable/c/54a5b5a15588e3b0b294df31474d08a2678d4291
• git.kernel.orghttps://git.kernel.org/stable/c/2618849f31e7cf51fadd4a5242458501a6d5b315