{"cve":"CVE-2014-7155","nvd":{"published":"2014-10-02T14:55:05.120","modified":"2026-06-17T00:14:27.570","status":"Modified","description":"The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 4.4.x and earlier does not properly check supervisor mode permissions, which allows local HVM users to cause a denial of service (guest crash) or gain guest kernel mode privileges via vectors involving an (1) HLT, (2) LGDT, (3) LIDT, or (4) LMSW instruction.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-264"],"references":["http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html","http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.html","http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html","http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html","http://secunia.com/advisories/61858"],"products":["debian:debian_linux","fedoraproject:fedora","opensuse:opensuse","xen:xen"],"source":"nvd","synced_at":"2026-10-19T20:34:04.196504363+00:00"},"epss":{"cve":"CVE-2014-7155","score":0.00968,"percentile":0.6186,"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."]}