CVE-2026-53286

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 2.6% 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 2026-07-08.

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

2026-06-26 19:40Z2 MO AGO

Last updated

2026-06-26 19:40Z2 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-415Double FreeVariant
• CWE-364Signal Handler Race ConditionBase

Data version

5.2

Document digest

93f89acab74f862ef1f8a5db7ffcb515f99f2569823a014f9b012fcd0b8e6e93

• git.kernel.orghttps://git.kernel.org/stable/c/722b91d5086a249318c9d0e2b36aeac80ba8c808
• git.kernel.orghttps://git.kernel.org/stable/c/f319de7074e1728a9f9ff7134257360c694ec2b2
• git.kernel.orghttps://git.kernel.org/stable/c/6c77b9510829a424d1b74409b7db9456e3522871