CVE-2011-2039

HighPublished

The helper application in Cisco AnyConnect Secure Mobility Client (formerly AnyConnect VPN Client) before 2.3.185 on Windows, and on Windows Mobile,...

Published: Jun 2, 2011
Updated: Aug 6, 2024
Assigning CNA: cisco
Evidence observed: Jun 6, 2011

Primary CVSS

7.6/ 10High

nvd · CVSS 2.0

AV:N/AC:H/Au:N/C:C/I:C/A:C

EPSS probability estimate

70.0%

High · next 30 days

Percentile: 99.4%
Model date: Oct 13, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

Repository evidence: Files: 1 · Repositories: 1

1 Module

Cisco AnyConnect VPN Client ActiveX URL Property Download and ExecuteModule
modules/exploits/windows/browser/cisco_anyconnect_exec.rb
Metasploit Framework modules
ExploitEvidence observed: Sep 26, 2026Revision: 2d664636002dRelated tool
Declared conditions
- platform: Windows($.exploit_windows/browser/cisco_anyconnect_exec.platform)
- verification: check_not_declared($.exploit_windows/browser/cisco_anyconnect_exec.check)

Cisco AnyConnect VPN Client - ActiveX URL Property Download and Execute (Metasploit)Exploit

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