CVE-2026-53000

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A flaw exists in the netfilter component of the Linux kernel, specifically within the Network Address Translation (NAT) subsystem. The issue stems from improper memory management when releasing network filter operation structures. This can lead to a system crash resulting in a Denial of Service (DoS) or the unauthorized exposure of sensitive internal hook data during error handling. The problem is particularly relevant when dumping active netfilter hooks from userspace, as the nf nat register fn() function may partially expose hooks during the error path.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.