{"cve":"CVE-2013-1917","nvd":{"published":"2013-05-13T23:55:01.757","modified":"2026-06-16T23:52:23.820","status":"Modified","description":"Xen 3.1 through 4.x, when running 64-bit hosts on Intel CPUs, does not clear the NT flag when using an IRET after a SYSENTER instruction, which allows PV guest users to cause a denial of service (hypervisor crash) by triggering a #GP fault, which is not properly handled by another IRET instruction.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://lists.fedoraproject.org/pipermail/package-announce/2013-May/104537.html","http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00015.html","http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html","http://lists.opensuse.org/opensuse-security-announce/2014-04/msg00000.html","http://lists.opensuse.org/opensuse-updates/2013-06/msg00049.html"],"products":["xen:xen"],"source":"nvd","synced_at":"2026-10-19T20:29:16.037019470+00:00"},"epss":{"cve":"CVE-2013-1917","score":0.00372,"percentile":0.31213,"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."]}