{"action":"Upgrade xen to 4.12.3-r2 or later.","affected":[{"fixed":"4.12.3-r2","introduced":"4.8.0"}],"component":"xen","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.10","exploited":false,"fixed_versions":["4.12.3-r2"],"id":"tcs_01M5NC8J2WJNVF7AWRW6MFEFKB","modified_at":"2026-09-11T10:17:51.388589169Z","published_at":"2020-07-07T13:15:09.963Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2020-15563","https://security.alpinelinux.org/vuln/CVE-2020-15563"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2020-15563","url":"https://osv.dev/vulnerability/ALPINE-CVE-2020-15563"}],"summary":"An issue was discovered in Xen through 4.13.x, allowing x86 HVM guest OS users to cause a hypervisor crash. An inverted conditional in x86 HVM guests' dirty video RAM tracking code allows such guests"}