{"action":"Upgrade linux to 5.4.6-1 or later.","affected":[{"fixed":"5.4.6-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["5.4.6-1"],"id":"tcs_01M5ND7W73TP1NZ3M84DYSPTAJ","modified_at":"2026-10-23T18:03:03.145713098Z","published_at":"2018-10-26T00:29:00.237Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2018-18653","https://security-tracker.debian.org/tracker/CVE-2018-18653"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2018-18653#Debian:14/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2018-18653"}],"summary":"The Linux kernel, as used in Ubuntu 18.10 and when booted with UEFI Secure Boot enabled, allows privileged local users to bypass intended Secure Boot restrictions and execute untrusted code by loading"}