CVE-2026-64132

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

0.49% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 40.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-08-13.

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 15:40Z1 MO AGO

Last updated

2026-08-05 12:39Z1 MO AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

• CWE-416Use After FreeVariant
• CWE-825Expired Pointer DereferenceBase

Data version

5.2

Document digest

eb64142ea4b1e3bb99a9d71cdeb706cd04c4cb1da5cf5914d614a9adcb925949

• git.kernel.orghttps://git.kernel.org/stable/c/769723124b7c3b2bfea4cf68ad292698b87c8d01
• git.kernel.orghttps://git.kernel.org/stable/c/24de676da63c1122d2c13b0d546238b66d1b4e62
• git.kernel.orghttps://git.kernel.org/stable/c/5af905aa8e91ff8d94572a1e089558f21dcf24ed
• git.kernel.orghttps://git.kernel.org/stable/c/e46e6bc97fb1f339730ff1ba74267fbf48e7a422