CVE-2026-53308

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

0.10% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 1.0% 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 2026-07-06.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2026-06-26 19:41Z2 MO AGO

Last updated

2026-06-26 19:41Z2 MO AGO

Reserved

2026-06-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-401Missing Release of Memory after Effective LifetimeVariant
• CWE-364Signal Handler Race ConditionBase

Data version

5.2

Document digest

0a8c37a983846f2b491ac432a7835ca200cfc9dbd964093a7e375360b99ad1cc

• git.kernel.orghttps://git.kernel.org/stable/c/b98e4e57e34d099a8f846fa54749654082975ea0
• git.kernel.orghttps://git.kernel.org/stable/c/1e668baadefb16e81269dbfebf3ffc2672e3a3bb