CVE-2026-64392

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

0.47% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 38.5% of scored records. A rank, not a probability.

NVD base score

9.1 (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:N/I:H/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-09-04.

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 08:50Z1 MO AGO

Last updated

2026-08-17 04:54Z18 DAYS AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

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

Weaknesses

No CWE assigned

Data version

5.2

Document digest

71ce71df931f9c6520e4c793467bc949e7c87f952bb691ae432d72da77ea01be

• git.kernel.orghttps://git.kernel.org/stable/c/f08b3f451f12eee4abd8a5981803bc36db84458b
• git.kernel.orghttps://git.kernel.org/stable/c/18c59109bb6fb816d5102171666f87cf1e29901d
• git.kernel.orghttps://git.kernel.org/stable/c/e72c15085b6d86f45d224d98aa75b5cace4aaab9
• git.kernel.orghttps://git.kernel.org/stable/c/4b7059974549d278e30fe70e2a4e421f9839817d
• git.kernel.orghttps://git.kernel.org/stable/c/52e2f21911158ec961cd5aae19c56460db382af0