{"action":"Upgrade xen to 4.4.0-1 or later.","affected":[{"fixed":"4.4.0-1","introduced":"0"}],"component":"xen","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["4.4.0-1"],"id":"tcs_01M5NBTYKZ1N0H72SFWAEXAHMQ","modified_at":"2026-09-22T07:02:57.268791238Z","published_at":"2017-02-17T02:59:13.967Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2016-9637","https://security-tracker.debian.org/tracker/CVE-2016-9637"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2016-9637","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2016-9637"}],"summary":"The (1) ioport_read and (2) ioport_write functions in Xen, when qemu is used as a device model within Xen, might allow local x86 HVM guest OS administrators to gain qemu process privileges via vectors"}