{"action":"Upgrade linux to 6.12.63-1 or later.","affected":[{"fixed":"6.12.63-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["6.12.63-1"],"id":"tcs_01M5NNTEGKW7PA6QB1M570T10G","modified_at":"2026-10-23T18:04:36.416025640Z","published_at":"2025-12-04T16:16:19.080Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-40254","https://security-tracker.debian.org/tracker/CVE-2025-40254"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-40254#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-40254"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: remove never-working support for setting nsh fields The validation of the set(nsh(...)) action is completely wrong"}