CVE-2025-21921 | Linux Kernel up to 6.12.18/6.13.6 ethnl_req_get_phydev denial of service (WID-SEC-2025-0683)
A vulnerability was found in Linux Kernel up to 6.12.18/6.13.6. It has been classified as critical. Impacted is the function ethnl_req_get_phydev. The manipulation leads to denial of service.
This vulnerability is referenced as CVE-2025-21921. The attack needs to be initiated within the local network. No exploit is available.
Upgrading the affected component is recommended.