{"api_version":"1","generated_at":"2026-07-23T08:09:22+00:00","cve":"CVE-2011-1936","urls":{"html":"https://cve.report/CVE-2011-1936","api":"https://cve.report/api/cve/CVE-2011-1936.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2011-1936","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2011-1936"},"summary":{"title":"CVE-2011-1936","description":"Xen, when using x86 Intel processors and the VMX virtualization extension is enabled, does not properly handle cpuid instruction emulation when exiting the VM, which allows local guest users to cause a denial of service (guest crash) via unspecified vectors.","state":"PUBLISHED","assigner":"redhat","published_at":"2014-01-07 19:55:05","updated_at":"2026-04-29 01:13:23"},"problem_types":["NVD-CWE-noinfo","n/a"],"metrics":[{"version":"2.0","source":"nvd@nist.gov","type":"Primary","score":"4.6","severity":"","vector":"AV:A/AC:H/Au:N/C:N/I:N/A:C","data":{"version":"2.0","vectorString":"AV:A/AC:H/Au:N/C:N/I:N/A:C","baseScore":4.6,"accessVector":"ADJACENT_NETWORK","accessComplexity":"HIGH","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"COMPLETE"}}],"references":[{"url":"http://www.openwall.com/lists/oss-security/2011/07/07/3","name":"http://www.openwall.com/lists/oss-security/2011/07/07/3","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"oss-security - CVE-2011-1780, CVE-2011-1936, kernel/xen issues","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://rhn.redhat.com/errata/RHSA-2011-0927.html","name":"http://rhn.redhat.com/errata/RHSA-2011-0927.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"access.redhat.com","mime":"text/html","httpstatus":"-1","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2011-1936","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-1936","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"n/a","product":"n/a","version":"affected n/a","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2011","cve_id":"1936","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"xen","cpe5":"xen","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2011","cve_id":"1936","cve":"CVE-2011-1936","epss":"0.000840000","percentile":"0.241600000","score_date":"2026-04-30","updated_at":"2026-05-01 00:10:53"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-06T22:46:00.815Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"name":"RHSA-2011:0927","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"],"url":"http://rhn.redhat.com/errata/RHSA-2011-0927.html"},{"name":"[oss-security] 20110707 CVE-2011-1780, CVE-2011-1936, kernel/xen issues","tags":["mailing-list","x_refsource_MLIST","x_transferred"],"url":"http://www.openwall.com/lists/oss-security/2011/07/07/3"}],"title":"CVE Program Container"}],"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"datePublic":"2011-07-07T00:00:00.000Z","descriptions":[{"lang":"en","value":"Xen, when using x86 Intel processors and the VMX virtualization extension is enabled, does not properly handle cpuid instruction emulation when exiting the VM, which allows local guest users to cause a denial of service (guest crash) via unspecified vectors."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2014-01-07T18:57:01.000Z","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat"},"references":[{"name":"RHSA-2011:0927","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"http://rhn.redhat.com/errata/RHSA-2011-0927.html"},{"name":"[oss-security] 20110707 CVE-2011-1780, CVE-2011-1936, kernel/xen issues","tags":["mailing-list","x_refsource_MLIST"],"url":"http://www.openwall.com/lists/oss-security/2011/07/07/3"}]}},"cveMetadata":{"assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","assignerShortName":"redhat","cveId":"CVE-2011-1936","datePublished":"2014-01-07T19:00:00.000Z","dateReserved":"2011-05-09T00:00:00.000Z","dateUpdated":"2024-08-06T22:46:00.815Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"nvd":{"publishedDate":"2014-01-07 19:55:05","lastModifiedDate":"2026-04-29 01:13:23","problem_types":["NVD-CWE-noinfo","n/a"],"metrics":{"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:A/AC:H/Au:N/C:N/I:N/A:C","baseScore":4.6,"accessVector":"ADJACENT_NETWORK","accessComplexity":"HIGH","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"COMPLETE"},"baseSeverity":"MEDIUM","exploitabilityScore":3.2,"impactScore":6.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:xen:xen:-:*:*:*:*:*:*:*","matchCriteriaId":"BFA1950D-1D9F-4401-AA86-CF3028EFD286"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2011","CveId":"1936","Ordinal":"1","Title":"CVE-2011-1936","CVE":"CVE-2011-1936","Year":"2011"},"notes":[{"CveYear":"2011","CveId":"1936","Ordinal":"1","NoteData":"Xen, when using x86 Intel processors and the VMX virtualization extension is enabled, does not properly handle cpuid instruction emulation when exiting the VM, which allows local guest users to cause a denial of service (guest crash) via unspecified vectors.","Type":"Description","Title":"CVE-2011-1936"},{"CveYear":"2011","CveId":"1936","Ordinal":"2","NoteData":"2014-01-07","Type":"Other","Title":"Published"},{"CveYear":"2011","CveId":"1936","Ordinal":"3","NoteData":"2014-01-07","Type":"Other","Title":"Modified"}]}}}