CVE-2023-54273
kernel: Linux kernel: Denial of Service due to xfrm resource leak
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · December 30, 2025
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel. A local attacker with low privileges could exploit a resource leak vulnerability within the xfrm subsystem. This occurs because a network device (netdev) reference tracker is incorrectly released during direction checks. Successful exploitation can lead to a Denial of Service (DoS) due to the exhaustion of system resources.
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 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-430 · Deployment of Wrong Handler