{"cve":"CVE-2011-2039","nvd":{"published":"2011-06-02T19:55:04.373","modified":"2026-06-16T23:30:37.463","status":"Modified","description":"The helper application in Cisco AnyConnect Secure Mobility Client (formerly AnyConnect VPN Client) before 2.3.185 on Windows, and on Windows Mobile, downloads a client executable file (vpndownloader.exe) without verifying its authenticity, which allows remote attackers to execute arbitrary code via the url property to a certain ActiveX control in vpnweb.ocx, aka Bug ID CSCsy00904.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=909","http://osvdb.org/72714","http://securityreason.com/securityalert/8272","http://www.cisco.com/en/US/products/products_security_advisory09186a0080b80123.shtml","http://www.kb.cert.org/vuls/id/490097"],"products":["cisco:anyconnect_secure_mobility_client"],"source":"nvd","synced_at":"2026-10-19T19:58:50.521460154+00:00"},"epss":{"cve":"CVE-2011-2039","score":0.69959,"percentile":0.99374,"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."]}