CVE-2026-64396

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

0.43% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 36.1% 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

Awaiting Analysis. NVD last modified this record on 2026-08-17.

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

2026-07-25 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

590ec2107d373e0c1ca47d83fdd40823dd054b625f0d5fcb43d5491cc6980f8c

• git.kernel.orghttps://git.kernel.org/stable/c/367c42a611fe488b7b03f1f6737f4dee0e8b20a2
• git.kernel.orghttps://git.kernel.org/stable/c/7703fd9aba1f2483c8e55f9ff73b7663e0761ed9
• git.kernel.orghttps://git.kernel.org/stable/c/463bbd79698513af4dad50fe1c573825f297ca2e
• git.kernel.orghttps://git.kernel.org/stable/c/5aa1cb01155f96824003baf7997cdf1f150caba3
• git.kernel.orghttps://git.kernel.org/stable/c/5c75275c0fc9a2deb0d8f5604edcb16f288171c8
• git.kernel.orghttps://git.kernel.org/stable/c/d20d1c8ba5765d1d12eefc0aee6385ab3f240e1e