CVE-2026-64463

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 3.7% 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

Received. 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

2026-07-25 08:51Z1 MO AGO

Last updated

2026-08-17 04:56Z18 DAYS 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

No CWE assigned

Data version

5.2

Document digest

e85988f063b4c95fdea035a86a6e6d41055b24d087b8c37be83a986b39bf31d5

• git.kernel.orghttps://git.kernel.org/stable/c/ce2e36e8759dfbfe546723810c306f42f484866d
• git.kernel.orghttps://git.kernel.org/stable/c/94b1abf1af94aa5a355e9f03675e07bccfc41c4b
• git.kernel.orghttps://git.kernel.org/stable/c/e5406c8fb71cd2f89a46300a746f6e7972e621e8
• git.kernel.orghttps://git.kernel.org/stable/c/569f18a83eed0b0be4615f0c7bed40fb5c50e2e6
• git.kernel.orghttps://git.kernel.org/stable/c/e8da46d99d3710106e7c44db14566bf9b57386b5