CVE-2011-2039 in the critical feed json
The helper application in Cisco AnyConnect Secure Mobility Client (formerly AnyConnect VPN Client) before 2.3.185 on Windows, and on Window…
published 2011-06-02 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-2033
- cvss
- 7.6
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 70.0%
- EPSS 70.0% chance of exploitation in 30 days, percentile 99.3%
- public exploits
- 2
- Metasploit, Exploit-DB
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.
Timeline
- First public exploit (Metasploit exploit/windows/browser/cisco_anyconnect_exec)
- Published
Exploit prediction
69.96% chance of exploitation in the next 30 days, higher than 99.3% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- Metasploit exploit/windows/browser/cisco_anyconnect_exec Cisco AnyConnect VPN Client ActiveX URL Property Download and Execute metasploit exploit, excellent rank, 2011-06-01
- EDB-17366 Cisco AnyConnect VPN Client - ActiveX URL Property Download and Execute (Metasploit) remote, 2011-06-06
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.6 | AV:N/AC:H/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
cisco.com
/en/US/products/products_security_advisory09186a0080b80123.shtml
vendor-advisory
-
osvdb.org
/72714
vdb-entry
-
securityreason.com
/securityalert/8272
third-party-advisory
-
securitytracker.com
/id?1025591
vdb-entry
-
kb.cert.org
/vuls/id/490097
third-party-advisory, us-government-resource
-
labs.idefense.com
/intelligence/vulnerabilities/display.php?id=909
third-party-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/67739
vdb-entry
Sources
- CVE List CVE-2011-2039
- NVD CVE-2011-2039
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.