CVE-2026-63851

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

0.13% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 3.1% 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

Awaiting Analysis. NVD last modified this record on 2026-07-27.

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

2026-07-19 14:04Z1 MO AGO

Last updated

2026-08-05 12:36Z1 MO AGO

Reserved

2026-07-19

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-229Improper Handling of ValuesBase

Data version

5.2

Document digest

82f4378d4ae24633fcd46596007b97b281323a2a5682b7ae00597aba8cc087c9

• git.kernel.orghttps://git.kernel.org/stable/c/75091030f07b7957cc0646cd52e2d9d15f611483
• git.kernel.orghttps://git.kernel.org/stable/c/6d9a98c5ed65ba92a09e4ca5a5f6941448145529
• git.kernel.orghttps://git.kernel.org/stable/c/7f23b5c420b9f68a210c29c5123bace670aa8cc9
• git.kernel.orghttps://git.kernel.org/stable/c/589a254bf3e88204c8402b9cbccd5e23a0af990f