{"action":"Upgrade linux to 4.5.5-1 or later.","affected":[{"fixed":"4.5.5-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["4.5.5-1"],"id":"tcs_01M5NBKG20DPNKD8FDZ99PKESX","modified_at":"2026-09-22T07:00:47.330468887Z","published_at":"2016-06-27T10:59:07.783Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2016-4440","https://security-tracker.debian.org/tracker/CVE-2016-4440"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2016-4440#Debian:14/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2016-4440"}],"summary":"arch/x86/kvm/vmx.c in the Linux kernel through 4.6.3 mishandles the APICv on/off state, which allows guest OS users to obtain direct APIC MSR access on the host OS, and consequently cause a denial of"}