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CVE-2023-53651

kernel: Linux kernel exc3000 driver: Denial of Service due to improper timer shutdown

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Severity

Important

Red Hat Product Security

7

CVSS 3.1

Review impact separately from score.

Published · October 7, 2025

Updated · August 14, 2026

Description

A flaw was found in the Linux kernel exc3000 driver. This vulnerability occurs due to the driver failing to properly stop a timer during its unbinding or probe failure processes. A local attacker could exploit this issue, leading to a Use-After-Free (UAF) condition. This UAF can cause a system crash, resulting in a Denial of Service (DoS), and potentially lead to arbitrary code execution.

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 · 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-772 · Missing Release of Resource after Effective Lifetime