CVE-2026-63807

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

0.14% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 3.3% 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:L/AC:L/PR:L/UI:N/S:C/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 04:51Z18 DAYS AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

No CWE assigned

Data version

5.2

Document digest

6bb1cad5335dfcdd5ae2ab6f389509070063fe771e8778a75d5a4041a1a9aa73

• git.kernel.orghttps://git.kernel.org/stable/c/7b52008023b7facf40fba3ebe92449bda8ea53b9
• git.kernel.orghttps://git.kernel.org/stable/c/5cab1c989f938f5e1b9a0de66486f1fc2c28479b
• git.kernel.orghttps://git.kernel.org/stable/c/48b91ed7e22bb82571c34f8b80b6ecdc90a6fab8
• git.kernel.orghttps://git.kernel.org/stable/c/c5c29b3c268332afe67d598a034c58344540ed92
• git.kernel.orghttps://git.kernel.org/stable/c/18587f9831612e24cd8f24be1ec15478feff7abc
• git.kernel.orghttps://git.kernel.org/stable/c/b2ae3245ea44dccaa9af676b6747476951883318
• git.kernel.orghttps://git.kernel.org/stable/c/ef057cbf825e03b63f6edf5980f96abf3c53089d