{"cve":"CVE-2015-7970","nvd":{"published":"2015-10-30T15:59:06.967","modified":"2026-06-17T00:33:27.860","status":"Modified","description":"The p2m_pod_emergency_sweep function in arch/x86/mm/p2m-pod.c in Xen 3.4.x, 3.5.x, and 3.6.x is not preemptible, which allows local x86 HVM guest administrators to cause a denial of service (CPU consumption and possibly reboot) via crafted memory contents that triggers a \"time-consuming linear scan,\" related to Populate-on-Demand.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-399"],"references":["http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html","http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html","http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html","http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html","http://support.citrix.com/article/CTX202404"],"products":["xen:xen"],"source":"nvd","synced_at":"2026-10-19T20:37:45.466985407+00:00"},"epss":{"cve":"CVE-2015-7970","score":0.00436,"percentile":0.37958,"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."]}