{"action":"Upgrade xorg-server to 2:21.1.7-2 or later.","affected":[{"fixed":"2:21.1.7-2","introduced":"0"}],"component":"xorg-server","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["2:21.1.7-2"],"id":"tcs_01M5NHTWAGDA2PN4FH3JSJRSBH","modified_at":"2026-10-23T18:05:07.332650451Z","published_at":"2023-03-30T21:15:06.557Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2023-1393","https://security-tracker.debian.org/tracker/CVE-2023-1393"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2023-1393#Debian:14/xorg-server","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2023-1393"}],"summary":"A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation. If a client explicitly destroys the compositor overlay window (aka COW), the Xserver would lea"}