CVE-2026-53001

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

Description An issue exists in the netfilter xtables component where certain matches were not properly restricted to the inet family. This affects the xt mac, xt owner, and xt physdev extensions, which should be limited to IPv4 and IPv6. Additionally, the xt realm extension is exclusively for IPv4 because the dst->tclassid variable is specific to IPv4.

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