A vulnerability, which was classified as critical , was found in Linux Kernel up to 6.18.18/6.19.8 . Affected by this issue is the function genlmsg_reply of the component net-shapers . The manipulation results in privilege escalation. This vulnerability is known as CVE-2026-43481 . Access to the local network is required for this attack. No exploit is available. You should upgrade the affected component.