{"api_version":"1","generated_at":"2026-07-22T22:25:16+00:00","cve":"CVE-2011-3263","urls":{"html":"https://cve.report/CVE-2011-3263","api":"https://cve.report/api/cve/CVE-2011-3263.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2011-3263","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2011-3263"},"summary":{"title":"CVE-2011-3263","description":"zabbix_agentd in Zabbix before 1.8.6 and 1.9.x before 1.9.4 allows context-dependent attackers to cause a denial of service (CPU consumption) by executing the vfs.file.cksum command for a special device, as demonstrated by the /dev/urandom device.","state":"PUBLISHED","assigner":"mitre","published_at":"2011-08-19 21:55:02","updated_at":"2026-04-29 01:13:23"},"problem_types":["CWE-399","n/a"],"metrics":[{"version":"2.0","source":"nvd@nist.gov","type":"Primary","score":"5","severity":"","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","data":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","baseScore":5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"}}],"references":[{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/69378","name":"https://exchange.xforce.ibmcloud.com/vulnerabilities/69378","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"IBM X-Force Exchange","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.zabbix.com/rn1.8.6.php","name":"http://www.zabbix.com/rn1.8.6.php","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"],"title":"Homepage of Zabbix :: An Enterprise-Class Open Source Distributed Monitoring 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in Zabbix before 1.8.6 and 1.9.x before 1.9.4 allows context-dependent attackers to cause a denial of service (CPU consumption) by executing the vfs.file.cksum command for a special device, as demonstrated by the /dev/urandom device.","Type":"Description","Title":"CVE-2011-3263"},{"CveYear":"2011","CveId":"3263","Ordinal":"2","NoteData":"2011-08-19","Type":"Other","Title":"Published"},{"CveYear":"2011","CveId":"3263","Ordinal":"3","NoteData":"2017-08-28","Type":"Other","Title":"Modified"}]}}}