{"action":"Upgrade xen to 4.13.1-r4 or later.","affected":[{"fixed":"4.13.1-r4","introduced":"4.8.0"}],"component":"xen","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.23","exploited":false,"fixed_versions":["4.13.1-r4"],"id":"tcs_01M5NC8QBJ3VFSXYAPQ0FNP4RR","modified_at":"2026-09-11T10:17:51.388878479Z","published_at":"2020-07-07T13:15:10.023Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2020-15564","https://security.alpinelinux.org/vuln/CVE-2020-15564"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2020-15564#Alpine:v3.23/xen","url":"https://osv.dev/vulnerability/ALPINE-CVE-2020-15564"}],"summary":"An issue was discovered in Xen through 4.13.x, allowing Arm guest OS users to cause a hypervisor crash because of a missing alignment check in VCPUOP_register_vcpu_info. The hypercall VCPUOP_register_"}