CVE-2026-53046

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

0.52% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 42.3% 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 2026-07-21.

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

2026-06-24 16:29Z2 MO AGO

Last updated

2026-08-05 12:32Z1 MO AGO

Reserved

2026-06-09

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-364Signal Handler Race ConditionBase

Data version

5.2

Document digest

d3071db809faaacc241ea1191db3f453cf1a1304f9d58dae16e4b11578017750

• git.kernel.orghttps://git.kernel.org/stable/c/57b47231055b431ed0a1a55f33cac32981564405
• git.kernel.orghttps://git.kernel.org/stable/c/cc2da381875d4a67026e4c8feb3dba51a2a2d1bc
• git.kernel.orghttps://git.kernel.org/stable/c/8fcefe840fa8c14ce667768e5b043286ac3bbcbe
• git.kernel.orghttps://git.kernel.org/stable/c/8ef183216feaa24b66b940510d8b68f680eb56e9
• git.kernel.orghttps://git.kernel.org/stable/c/7164b3953cefd540e7ebca828c793bc6869cfbc4
• git.kernel.orghttps://git.kernel.org/stable/c/b46aa129fa2807bfe1545fe74d9295d53c51520b
• git.kernel.orghttps://git.kernel.org/stable/c/3e298897f41c61450c2e7a4f457e8b2485eb35b3