CVE-2026-64467

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

0.17% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 6.7% 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

Received. NVD last modified this record on 2026-08-17.

Red Hat severity

Low. 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 08:51Z3 MO AGO

Last updated

2026-08-17 04:56Z2 MO 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

• CWE-911Improper Update of Reference CountBase

Data version

5.2

Document digest

e08fda597251bfd7fef468d9a6713c2e7db71c63e6647dcd1fab133b3264a055

• git.kernel.orghttps://git.kernel.org/stable/c/89b8cc948dce661af87527623b3a41cdd115e2f9
• git.kernel.orghttps://git.kernel.org/stable/c/74920b1b4e474ba7a4de4323c0458deec49d210b
• git.kernel.orghttps://git.kernel.org/stable/c/803c8a9502e9b97cd6ae937618ef4a8fd6274343