{"action":"Upgrade xen to 4.11.1-1 or later.","affected":[{"fixed":"4.11.1-1","introduced":"0"}],"component":"xen","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["4.11.1-1"],"id":"tcs_01M5ND81ZBB0DMPJXS1A3GD8FT","modified_at":"2026-10-23T18:03:03.110666731Z","published_at":"2018-11-01T00:29:00.190Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2018-18883","https://security-tracker.debian.org/tracker/CVE-2018-18883"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2018-18883","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2018-18883"}],"summary":"An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service (NULL pointer dereference) or possibly have unspecifie"}