{"cve":"CVE-2011-3263","nvd":{"published":"2011-08-19T21:55:02.757","modified":"2026-06-16T23:32:59.313","status":"Modified","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.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-399"],"references":["http://www.zabbix.com/rn1.8.6.php","https://exchange.xforce.ibmcloud.com/vulnerabilities/69378","https://support.zabbix.com/browse/ZBX-3794","http://www.zabbix.com/rn1.8.6.php","https://exchange.xforce.ibmcloud.com/vulnerabilities/69378"],"products":["zabbix:zabbix"],"source":"nvd","synced_at":"2026-10-19T19:58:50.521460154+00:00"},"epss":{"cve":"CVE-2011-3263","score":0.01294,"percentile":0.70326,"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."]}