CVE-2026-64239

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

0.12% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 1.9% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Moderate. 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

2026-07-24 15:27Z1 MO AGO

Last updated

2026-07-24 15:27Z1 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-416Use After FreeVariant

Data version

5.2

Document digest

0b44fc2f72119890e1f048ce81195b2d2170bb51de9542e551afe2ccb35046f4

• git.kernel.orghttps://git.kernel.org/stable/c/c0e37017a452addec873865c94cf7a665663a9b2
• git.kernel.orghttps://git.kernel.org/stable/c/a5fa42214de55e43d165144727ce9facb9fc6b08
• git.kernel.orghttps://git.kernel.org/stable/c/0ba6c05156d9ff9fc6ca22b7690e2eec9eca66f7
• git.kernel.orghttps://git.kernel.org/stable/c/2c33177023c92e76806c535ddbffaa3d3fc37777
• git.kernel.orghttps://git.kernel.org/stable/c/441f92f7d386b85bad16de49db95a307cba048a2