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CVE-2023-53731

kernel: Kernel: Denial of Service due to a Netlink subsystem deadlock

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Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · October 22, 2025

Updated · June 30, 2026

Description

A flaw was found in the Linux kernel. A local attacker with low privileges could exploit a timing issue, specifically a potential deadlock in the Netlink communication subsystem. This could cause the system to become unresponsive, leading to a Denial of Service (DoS).

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-833 · Deadlock