CVE-2026-63994 | Linux Kernel up to 7.0.11 Tunnels use after free

July 19, 2026 Yanac

A vulnerability was found in Linux Kernel up to 7.0.11 and classified as very critical. This vulnerability affects the function iptunnel_pmtud_build_icmp/iptunnel_pmtud_build_icmpv6 of the component Tunnels. Executing a manipulation can lead to use after free.

This vulnerability is tracked as CVE-2026-63994. The attack can be launched remotely. No exploit exists.VulDB Recent EntriesRead More