{"cve":"CVE-2009-2053","nvd":{"published":"2009-08-27T17:00:01.030","modified":"2026-06-16T23:08:39.970","status":"Modified","description":"Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 4.x, 5.x before 5.1(3g), 6.x before 6.1(4), 7.0 before 7.0(2a)su1, and 7.1 before 7.1(2) allows remote attackers to cause a denial of service (file-descriptor exhaustion and SCCP outage) via a flood of TCP packets, aka Bug ID CSCsx32236.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://osvdb.org/57455","http://secunia.com/advisories/36498","http://secunia.com/advisories/36499","http://www.cisco.com/en/US/products/products_security_advisory09186a0080af2d11.shtml","http://www.securityfocus.com/bid/36152"],"products":["cisco:unified_communications_manager"],"source":"nvd","synced_at":"2026-10-19T19:54:26.868835795+00:00"},"epss":{"cve":"CVE-2009-2053","score":0.03406,"percentile":0.88868,"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."]}