{"cve":"CVE-2013-6400","nvd":{"published":"2013-12-13T18:55:05.317","modified":"2026-06-17T00:00:25.263","status":"Modified","description":"Xen 4.2.x and 4.3.x, when using Intel VT-d and a PCI device has been assigned, does not clear the flag that suppresses IOMMU TLB flushes when unspecified errors occur, which causes the TLB entries to not be flushed and allows local guest administrators to cause a denial of service (host crash) or gain privileges via unspecified vectors.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-264"],"references":["http://lists.fedoraproject.org/pipermail/package-announce/2013-December/125081.html","http://lists.fedoraproject.org/pipermail/package-announce/2013-December/125111.html","http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html","http://lists.xen.org/archives/html/xen-announce/2013-12/msg00002.html","http://secunia.com/advisories/55932"],"products":["xen:xen"],"source":"nvd","synced_at":"2026-10-19T20:30:15.895642412+00:00"},"epss":{"cve":"CVE-2013-6400","score":0.00661,"percentile":0.51642,"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."]}