{"cve":"CVE-2014-8866","nvd":{"published":"2014-12-01T15:59:08.797","modified":"2026-06-17T00:17:27.263","status":"Modified","description":"The compatibility mode hypercall argument translation in Xen 3.3.x through 4.4.x, when running on a 64-bit hypervisor, allows local 32-bit HVM guests to cause a denial of service (host crash) via vectors involving altering the high halves of registers while in 64-bit mode.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-17"],"references":["http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html","http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html","http://secunia.com/advisories/59937","http://secunia.com/advisories/62672","http://support.citrix.com/article/CTX200288"],"products":["debian:debian_linux","opensuse:opensuse","xen:xen"],"source":"nvd","synced_at":"2026-10-19T20:34:45.729216538+00:00"},"epss":{"cve":"CVE-2014-8866","score":0.00432,"percentile":0.37554,"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."]}