CVE-2026-64029

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

0.13% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 2.5% 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

Awaiting Analysis. NVD last modified this record on 2026-07-30.

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 15:39Z1 MO AGO

Last updated

2026-08-05 12:38Z1 MO AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

• CWE-364Signal Handler Race ConditionBase

Data version

5.2

Document digest

80c213f2bd197b8a6d6ddf830dbeac98e6d7f79ed80b3e90d347039f3da7b1a4

• git.kernel.orghttps://git.kernel.org/stable/c/8ba1c4ddbb1c67d34bb440aecb9f5690ed3f64cb
• git.kernel.orghttps://git.kernel.org/stable/c/0cb1ad795570167558530d6194297ac2396a1991
• git.kernel.orghttps://git.kernel.org/stable/c/3aab4a58d23fb22dac5b558bbe5df1a8dad00b4b
• git.kernel.orghttps://git.kernel.org/stable/c/ef46b616a4c219185bbf10ebcbacb571583fd0e4
• git.kernel.orghttps://git.kernel.org/stable/c/60a1969fae6209644698fca91c185d153674f631