{"action":"Upgrade xen to 4.11.4-1 or later.","affected":[{"fixed":"4.11.4-1","introduced":"0"}],"component":"xen","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["4.11.4-1"],"id":"tcs_01M5NEGFZ75ER52C7V976YAXZM","modified_at":"2026-09-11T11:00:36.648348456Z","published_at":"2020-04-14T13:15:12.703Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-11739","https://security-tracker.debian.org/tracker/CVE-2020-11739"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-11739#Debian:14/xen","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-11739"}],"summary":"An issue was discovered in Xen through 4.13.x, allowing guest OS users to cause a denial of service or possibly gain privileges because of missing memory barriers in read-write unlock paths. The read-"}