{"cve":"CVE-2012-4536","nvd":{"published":"2012-11-21T23:55:02.117","modified":"2026-06-16T23:45:16.963","status":"Modified","description":"The (1) domain_pirq_to_emuirq and (2) physdev_unmap_pirq functions in Xen 2.2 allows local guest OS administrators to cause a denial of service (Xen crash) via a crafted pirq value that triggers an out-of-bounds read.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00008.html","http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00009.html","http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html","http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html","http://lists.xen.org/archives/html/xen-announce/2012-11/msg00003.html"],"products":["xen:xen"],"source":"nvd","synced_at":"2026-10-19T20:27:27.940201468+00:00"},"epss":{"cve":"CVE-2012-4536","score":0.00419,"percentile":0.36278,"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."]}