CVE-2026-64390

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 38.4% 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:N/AC:L/PR:L/UI:N/S:U/C:H/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

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

No CWE assigned

Data version

5.2

Document digest

ec68535e4cbb68837d13becaa8a5a92cae6750f7439a35ccdc72e54b2b1feed4

• git.kernel.orghttps://git.kernel.org/stable/c/22d38cf75b556c20b039743bdf3654d535b858be
• git.kernel.orghttps://git.kernel.org/stable/c/66eb3643164e5e1029907793926c132f8b5c6148
• git.kernel.orghttps://git.kernel.org/stable/c/ea5c9bf99f626a15cc59f645dc895f2b3f01992e
• git.kernel.orghttps://git.kernel.org/stable/c/fe20d492a69a6f79e637f438072b212e21ed3b78
• git.kernel.orghttps://git.kernel.org/stable/c/427faaa52b0b399940c1a88065a5c310d10dad15
• git.kernel.orghttps://git.kernel.org/stable/c/5fecc15a30cb9ebd310f7b52c1ab607edcea78f6
• git.kernel.orghttps://git.kernel.org/stable/c/c1016dd1d8b2bcd1158bbaabe94a31bb7e7431fb