{"cve":"CVE-2014-4021","nvd":{"published":"2014-06-18T19:55:04.920","modified":"2026-06-17T00:09:18.397","status":"Modified","description":"Xen 3.2.x through 4.4.x does not properly clean memory pages recovered from guests, which allows local guest OS users to obtain sensitive information via unspecified vectors.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-119"],"references":["http://linux.oracle.com/errata/ELSA-2014-0926-1.html","http://linux.oracle.com/errata/ELSA-2014-0926.html","http://lists.fedoraproject.org/pipermail/package-announce/2014-July/135068.html","http://lists.fedoraproject.org/pipermail/package-announce/2014-July/135071.html","http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html"],"products":["xen:xen"],"source":"nvd","synced_at":"2026-10-19T20:33:06.232976534+00:00"},"epss":{"cve":"CVE-2014-4021","score":0.00684,"percentile":0.5258,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}