{"action":"Upgrade xen to 4.8.3+xsa262+shim4.10.0+comet3-1+deb9u7 or later.","affected":[{"fixed":"4.8.3+xsa262+shim4.10.0+comet3-1+deb9u7","introduced":"0"}],"component":"xen","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["4.8.3+xsa262+shim4.10.0+comet3-1+deb9u7"],"id":"tcs_01M5NDCBAP4BGAF61HX7YCEVJS","modified_at":"2026-10-23T18:04:48.054771411Z","published_at":"2018-05-22T12:29:00.250Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2018-3639","https://security-tracker.debian.org/tracker/CVE-2018-3639"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2018-3639#Debian:13/xen","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2018-3639"}],"summary":"Systems with microprocessors utilizing speculative execution and speculative execution of memory reads before the addresses of all prior memory writes are known may allow unauthorized disclosure of in"}