CVE-2026-63797

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

0.15% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 4.4% of scored records. A rank, not a probability.

NVD base score

8.4 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-08-17.

Red Hat severity

Important. 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

2026-07-19 12:02Z1 MO AGO

Last updated

2026-08-17 04:51Z19 DAYS AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.4)

CNA CVSS vector

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

Weaknesses

No CWE assigned

Data version

5.2

Document digest

e4f348165ffc08d7448386ac844c62049c5c1cceb61935ec308398ef9e8bd4ae

• git.kernel.orghttps://git.kernel.org/stable/c/1306fc4f76f765727a6d5aefbf08ef0c8f32996f
• git.kernel.orghttps://git.kernel.org/stable/c/ddf13f91ca82c94ef7ad9c41a434a03313f8eb1b
• git.kernel.orghttps://git.kernel.org/stable/c/c5ebb06c7e24d531b68707168e04698859d642bc
• git.kernel.orghttps://git.kernel.org/stable/c/104d100212396801f1d9d388282f746e23e2bfd6
• git.kernel.orghttps://git.kernel.org/stable/c/ff268cd9ccbce6472a0658791b417bf11c31ee39
• git.kernel.orghttps://git.kernel.org/stable/c/1ff3f528e67d20e2b1483dcaba899dc7832b2e6b