{"action":"Upgrade xen to 4.13.4-r2 or later.","affected":[{"fixed":"4.13.4-r2","introduced":"3.2"}],"component":"xen","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.11","exploited":false,"fixed_versions":["4.13.4-r2"],"id":"tcs_01M5ND4NCGAV7SZPC3H4RF8XM5","modified_at":"2026-10-23T17:17:56.177767386Z","published_at":"2021-11-24T01:15:08.127Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2021-28706","https://security.alpinelinux.org/vuln/CVE-2021-28706"],"severity":{"label":"high","score":8.6},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2021-28706","url":"https://osv.dev/vulnerability/ALPINE-CVE-2021-28706"}],"summary":"guests may exceed their designated memory limit When a guest is permitted to have close to 16TiB of memory, it may be able to issue hypercalls to increase its memory allocation beyond the administrato"}