{"cve":"CVE-2014-9066","nvd":{"published":"2014-12-09T23:59:09.193","modified":"2026-06-17T00:17:44.407","status":"Modified","description":"Xen 4.4.x and earlier, when using a large number of VCPUs, does not properly handle read and write locks, which allows local x86 guest users to cause a denial of service (write denial or NMI watchdog timeout and host crash) via a large number of read requests, a different vulnerability than CVE-2014-9065.","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://www.openwall.com/lists/oss-security/2014/12/08/4","http://www.securityfocus.com/bid/71546","http://xenbits.xen.org/xsa/advisory-114.html"],"products":["opensuse:opensuse","xen:xen"],"source":"nvd","synced_at":"2026-10-19T20:34:45.729216538+00:00"},"epss":{"cve":"CVE-2014-9066","score":0.00398,"percentile":0.34047,"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."]}