CVE-2026-64521

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

0.20% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 10.6% of scored records. A rank, not a probability.

NVD base score

The NVD has published no score for this record

NVD CVSS vector

No NVD score to derive

NVD analysis status

Received. NVD last modified this record on 2026-07-25.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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 09:14Z3 MO AGO

Last updated

2026-07-25 09:14Z3 MO AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-764Multiple Locks of a Critical ResourceBase

Data version

5.2

Document digest

3831bb9b0a93fe4c611f866c35c1af228aa9e568a83c5d6f0ef1f954370ba87e

• git.kernel.orghttps://git.kernel.org/stable/c/e917713f013423069782ff554935c7a5d4266783
• git.kernel.orghttps://git.kernel.org/stable/c/744ac926c0e55267a10b49b5b72582afef4ad49f
• git.kernel.orghttps://git.kernel.org/stable/c/e72ce029810390eb987a036fb2c8a5da9a23b685