CVE-2011-2039
The helper application in Cisco AnyConnect Secure Mobility Client (formerly AnyConnect VPN Client...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2011-2039- CVSS 2.0
- 7.6 High
AV:N/AC:H/Au:N/C:C/I:C/A:C - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2011-2039- Updated
- 2026-11-02
EUVDEUVD-2011-2033 No score
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.
- Record
EUVD-2011-2033- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vjg9-jfmj-x6jf No score
The helper application in Cisco AnyConnect Secure Mobility Client (formerly AnyConnect VPN Client...
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.
- Record
GHSA-vjg9-jfmj-x6jf- Weakness
- CWE-20
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Cisco AnyConnect VPN Client - ActiveX URL Property Download and Execute (Metasploit) | 2011-06-06 |
| Metasploit | Cisco AnyConnect VPN Client ActiveX URL Property Download and Execute | 2011-06-01 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, Metasploit, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2011-2039 is a high vulnerability (CVSS 7.6) in Cisco Anyconnect Secure Mobility Client, published June 2, 2011. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 70.0%, the 99th percentile. No source names a fixed version.
References
osvdb.org/72714
cisco.com/en/US/products/products_security_advisory09186a0080b80123.shtml
securityreason.com/securityalert/8272
securitytracker.com/id?1025591
kb.cert.org/vuls/id/490097
labs.idefense.com/intelligence/vulnerabilities/display.php?id=909
exchange.xforce.ibmcloud.com/vulnerabilities/67739
nvd.nist.gov/vuln/detail/CVE-2011-2039
github.com/advisories/GHSA-vjg9-jfmj-x6jf