{"action":"Upgrade xen to 4.14.1+11-gb0b734a8b3-1 or later.","affected":[{"fixed":"4.14.1+11-gb0b734a8b3-1","introduced":"0"}],"component":"xen","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["4.14.1+11-gb0b734a8b3-1"],"id":"tcs_01M5NFGEP4V4S92DXRZA2RVEBM","modified_at":"2026-10-23T18:03:25.475260521Z","published_at":"2021-02-17T02:15:13.097Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-26933","https://security-tracker.debian.org/tracker/CVE-2021-26933"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-26933","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-26933"}],"summary":"An issue was discovered in Xen 4.9 through 4.14.x. On Arm, a guest is allowed to control whether memory accesses are bypassing the cache. This means that Xen needs to ensure that all writes (such as t"}