CVE-2026-63952

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

0.16% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 6.1% 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:L/UI:N/S:C/C:H/I:H/A:N

NVD analysis status

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

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

High (CVSS 8.4)

CNA CVSS vector

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

Weaknesses

• CWE-266Incorrect Privilege AssignmentBase

Data version

5.2

Document digest

fc8bdd7fd05fba47fbe0001ddaad880846de0d26ac32a968471b2a22bbcb8762

• git.kernel.orghttps://git.kernel.org/stable/c/b3f4f82d1315f1439059a83d1c22c51a5b43d99e
• git.kernel.orghttps://git.kernel.org/stable/c/3be2a24f7f72ad7321ed6ad1715b956a4527bcf4
• git.kernel.orghttps://git.kernel.org/stable/c/0995d1f79aed8ccbf62056189dd53fd19726ea08
• git.kernel.orghttps://git.kernel.org/stable/c/555702282d4536a865dfffb1cd4f6028f196e7e8
• git.kernel.orghttps://git.kernel.org/stable/c/3b041514cb6eae45869b020f743c14d983363222