CVE-2026-64142

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

0.70% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 52.8% of scored records. A rank, not a probability.

NVD base score

9.8 (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:H/I:H/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-08-17.

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

2026-07-19 15:40Z3 MO AGO

Last updated

2026-08-05 12:39Z2 MO AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

• CWE-416Use After FreeVariant
• CWE-367Time-of-check Time-of-use (TOCTOU) Race ConditionBase

Data version

5.2

Document digest

82a86ea2fe1e11fb91bbefe419d5425daa94e5f95fe15ed01741e2b010c35761

• git.kernel.orghttps://git.kernel.org/stable/c/3a436932eb397e909d0607d76a8325abd9d85a35
• git.kernel.orghttps://git.kernel.org/stable/c/95f072ef934ca00711d510676b8792cbf59a5aae
• git.kernel.orghttps://git.kernel.org/stable/c/5da69a65b282d2276de22e5194ba0f88c836170c
• git.kernel.orghttps://git.kernel.org/stable/c/1f8f3246d55f89350a1a67bdf3744b7241048e4e
• git.kernel.orghttps://git.kernel.org/stable/c/bf736184d063da1a552ffeff0481813599a182cc