{"cve":"CVE-2009-4118","nvd":{"published":"2009-12-01T00:30:00.233","modified":"2026-06-16T23:13:04.523","status":"Modified","description":"The StartServiceCtrlDispatcher function in the cvpnd service (cvpnd.exe) in Cisco VPN client for Windows before 5.0.06.0100 does not properly handle an ERROR_FAILED_SERVICE_CONTROLLER_CONNECT error, which allows local users to cause a denial of service (service crash and VPN connection loss) via a manual start of cvpnd.exe while the cvpnd service is running.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://packetstormsecurity.org/0911-exploits/sybsec-adv17.txt","http://secunia.com/advisories/37419","http://tools.cisco.com/security/center/viewAlert.x?alertId=19445","http://www.securityfocus.com/bid/37077","http://www.vupen.com/english/advisories/2009/3296"],"products":["cisco:vpn_client"],"source":"nvd","synced_at":"2026-10-19T19:54:26.868835795+00:00"},"epss":{"cve":"CVE-2009-4118","score":0.02505,"percentile":0.84733,"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."]}