{"cve":"CVE-2013-1133","nvd":{"published":"2013-02-27T21:55:04.107","modified":"2026-06-16T23:50:53.773","status":"Modified","description":"Cisco Unified Communications Manager (CUCM) 8.6 before 8.6(2a)su2, 8.6 BE3k before 8.6(4) BE3k, and 9.x before 9.0(1) allows remote attackers to cause a denial of service (CPU consumption and GUI and voice outages) via malformed packets to unused UDP ports, aka Bug ID CSCtx43337.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130227-cucm","http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130227-cucm"],"products":["cisco:unified_communications_manager"],"source":"nvd","synced_at":"2026-10-19T20:27:27.940201468+00:00"},"epss":{"cve":"CVE-2013-1133","score":0.01328,"percentile":0.71022,"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."]}