CVE-2011-2039 EXPLOIT
7.6
HIGH · CVSS 2.0 · EPSS 70% (pctl 99)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 7.6 (HIGH, v2.0) |
|---|---|
| Vector | AV:N/AC:H/Au:N/C:C/I:C/A:C |
| EPSS | 69.96% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-20 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2011-06-02 |
| Last modified | 2026-06-16 |
Affected (3)
| Vendor | Product |
|---|---|
| cisco | anyconnect secure mobility client |
| microsoft | windows |
| microsoft | windows mobile |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Cisco AnyConnect VPN Client - ActiveX URL Property Download and Execute (Metasploit) | 2011-06-06 |
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
- http://www.securitytracker.com/id?1025591
- https://exchange.xforce.ibmcloud.com/vulnerabilities/67739
- 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
- http://www.securitytracker.com/id?1025591
- https://exchange.xforce.ibmcloud.com/vulnerabilities/67739
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