{"action":"Upgrade linux to 6.1.55-1 or later.","affected":[{"fixed":"6.1.55-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["6.1.55-1"],"id":"tcs_01M5NJ6XZ4W709B9C9X0ZZN8MX","modified_at":"2026-11-08T09:47:34.159246717Z","published_at":"2023-10-09T18:15:10.160Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2023-39189","https://security-tracker.debian.org/tracker/CVE-2023-39189"],"severity":{"label":"medium","score":6},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2023-39189","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2023-39189"}],"summary":"A flaw was found in the Netfilter subsystem in the Linux kernel. The nfnl_osf_add_callback function did not validate the user mode controlled opt_num field. This flaw allows a local privileged (CAP_NE"}