CVE-2026-63922

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

0.71% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 50.9% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-07-28.

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 14:55Z1 MO AGO

Last updated

2026-08-05 12:37Z1 MO AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

• CWE-825Expired Pointer DereferenceBase

Data version

5.2

Document digest

eaf992bde47680940149d5907452bf909687b0693b23ac1a409bbac8997c6f5c

• git.kernel.orghttps://git.kernel.org/stable/c/b3ac54e5c905f86d22b502eacb5686a282c5659f
• git.kernel.orghttps://git.kernel.org/stable/c/f8aabed3ff3e986920cf02a2a2785e08e586b234
• git.kernel.orghttps://git.kernel.org/stable/c/1a11eb7431e3d2882f5bd5939c5a9bbc65ccf4d1
• git.kernel.orghttps://git.kernel.org/stable/c/12d957979e4a800167842f1b42be6a606d227ebe
• git.kernel.orghttps://git.kernel.org/stable/c/ff375ed1cba81392346c5bfbf0bb7a13b2946f99
• git.kernel.orghttps://git.kernel.org/stable/c/751db1b802a067b7fff25880f4e9f9152a171538
• git.kernel.orghttps://git.kernel.org/stable/c/9b6dcc0a39fd71752937f0b6b3973e1416085dcf
• git.kernel.orghttps://git.kernel.org/stable/c/f7b52afe3592eae66e160586b45a3f2242972c63