CVE-2025-21891 | Linux Kernel up to 6.1.129/6.6.80/6.12.17/6.13.5 IPv6 ipvlan_process_v6_outbound denial of service
A vulnerability classified as critical has been found in Linux Kernel up to 6.1.129/6.6.80/6.12.17/6.13.5. Affected is the function ipvlan_process_v6_outbound of the component IPv6 Handler. The manipulation leads to denial of service.
This vulnerability is traded as CVE-2025-21891. The attack can only be done within the local network. There is no exploit available.
It is recommended to upgrade the affected component.