{"id":"CVE-2015-8553","url":"https://www.cyber-defence.io/tools/cve/CVE-2015-8553","generatedAt":"2026-10-28T04:30:59.045Z","title":"Xen allows guest OS users to obtain sensitive information from uninitialized locations in host OS kernel memory by not enabling memory and I/O decoding control bits.","description":"Xen allows guest OS users to obtain sensitive information from uninitialized locations in host OS kernel memory by not enabling memory and I/O decoding control bits.  NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-0777.","published":"2016-04-13T15:59:07.000Z","lastModified":"2026-06-17T00:34:46.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N"},"cwe":["CWE-200"],"affected":["xen/xen","redhat/enterprise linux"],"epss":{"score":0.00381,"percentile":0.31921,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.38%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://xenbits.xen.org/xsa/advisory-120.html","tags":["Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://seclists.org/bugtraq/2019/Aug/18","source":"cve@mitre.org"},{"url":"https://www.debian.org/security/2019/dsa-4497","source":"cve@mitre.org"},{"url":"http://xenbits.xen.org/xsa/advisory-120.html","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://seclists.org/bugtraq/2019/Aug/18","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2019/dsa-4497","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2015-8553","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}