CVE-2026-63801

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

0.51% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 41.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/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

Moderate. 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 8.8)

CNA CVSS vector

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

Weaknesses

No CWE assigned

Data version

5.2

Document digest

5c8c8d06e3a7e44ceb8bcf1e6a9d48c91a273f89773623145023ec406fcaf088

• git.kernel.orghttps://git.kernel.org/stable/c/171d31245d11bf84836fad3b394cb465a4d008ec
• git.kernel.orghttps://git.kernel.org/stable/c/2d1f21419ec121232c916d3a3fc9b6766473a0e7
• git.kernel.orghttps://git.kernel.org/stable/c/0a780653b2a7569a7af9be7d0b00b1251baca63a
• git.kernel.orghttps://git.kernel.org/stable/c/eaca7dae02fab70c8d223cffe03cec1b93249ce2
• git.kernel.orghttps://git.kernel.org/stable/c/dca7713fe044a2067387948557ea099056e1679e
• git.kernel.orghttps://git.kernel.org/stable/c/e18769616fd5a90ec1e12aabbba544c488284292
• git.kernel.orghttps://git.kernel.org/stable/c/1eea5e1820a2f5164d706bd1277bc97ff31ce32d
• git.kernel.orghttps://git.kernel.org/stable/c/bda3348872a2ef0d19f2df6aa8cb5025adce2f20