CVE-2026-23203 | Linux Kernel up to 6.18.9 net/8021q/vlan_core.c vlan_for_each assertion
A vulnerability was found in Linux Kernel up to 6.18.9. It has been declared as critical. The affected element is the function vlan_for_each of the file net/8021q/vlan_core.c. The manipulation results in reachable assertion.
This vulnerability is cataloged as CVE-2026-23203. The attack must originate from the local network. There is no exploit available.
It is recommended to upgrade the affected component.