CVE-2025-39963

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 3.9% 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

Modified. 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

2025-10-09 12:13Z11 MO AGO

Last updated

2026-08-05 12:06Z1 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-401Missing Release of Memory after Effective LifetimeVariant
• CWE-1025Comparison Using Wrong FactorsBase

Data version

5.2

Document digest

6335ac46a672dacee693773ba0d99daea7b3342c274c6b4c5369f086835ee974

• git.kernel.orghttps://git.kernel.org/stable/c/a89c34babc2e5834aa0905278f26f4dbe4b26b76
• git.kernel.orghttps://git.kernel.org/stable/c/50a98ce1ea694f1ff8e87bc2f8f84096d1736f6a
• git.kernel.orghttps://git.kernel.org/stable/c/2c139a47eff8de24e3350dadb4c9d5e3426db826