{"cve":"CVE-2007-1833","nvd":{"published":"2007-04-03T00:19:00.000","modified":"2026-06-16T22:38:23.083","status":"Modified","description":"The Skinny Call Control Protocol (SCCP) implementation in Cisco Unified CallManager (CUCM) 3.3 before 3.3(5)SR2a, 4.1 before 4.1(3)SR4, 4.2 before 4.2(3)SR1, and 5.0 before 5.0(4a)SU1 allows remote attackers to cause a denial of service (loss of voice services) by sending crafted packets to the (1) SCCP (2000/tcp) or (2) SCCPS (2443/tcp) port.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://secunia.com/advisories/24665","http://securitytracker.com/id?1017826","http://www.cisco.com/warp/public/707/cisco-sa-20070328-voip.shtml","http://www.securityfocus.com/bid/23181","http://www.vupen.com/english/advisories/2007/1144"],"products":["cisco:unified_callmanager"],"source":"nvd","synced_at":"2026-10-19T19:46:28.846926071+00:00"},"epss":{"cve":"CVE-2007-1833","score":0.02429,"percentile":0.84239,"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."]}