CVE-2026-64156

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 2.1% of scored records. A rank, not a probability.

NVD base score

5.5 (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:N/I:N/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

2026-07-19 15:40Z1 MO AGO

Last updated

2026-07-19 15:40Z1 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-367Time-of-check Time-of-use (TOCTOU) Race ConditionBase

Data version

5.2

Document digest

84de671a2c4a6fdb60f408c320aa718a8ee40f23ed4b3bc1f4e6297dc3e68abe

• git.kernel.orghttps://git.kernel.org/stable/c/77bb293049d61e04c12b24ebbffafaf5ab36af90
• git.kernel.orghttps://git.kernel.org/stable/c/f91e10435c0dd37c48b1b25e6236284f656ddc0c
• git.kernel.orghttps://git.kernel.org/stable/c/9871938f99cc6cb266a77265491660e2375271f5