CVE-2011-2039: n/a vulnerability

CVE-2011-2039: The helper application in Cisco AnyConnect Secure Mobility Client (formerly AnyConnect VPN Client) before 2...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 22:46 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2011-2039 affects legacy Cisco AnyConnect clients on Windows and Windows Mobile. A helper component could download a VPN client executable without confirming it was authentic. A remote attacker could use that weakness to run arbitrary code. This is primarily a legacy-client exposure issue, but any remaining affected installations should be treated seriously. Exposure is likely limited to organizations still running Cisco AnyConnect versions before 2.3.185 on Windows or Windows Mobile, especially where the vpnweb.ocx ActiveX component remains installed or usable. Prioritize remediation if legacy Cisco AnyConnect clients remain in the environment. The business risk is remote code execution on endpoints, but urgency depends on whether these old Windows or Windows Mobile clients still exist. Mitigation focus: Upgrade affected Cisco AnyConnect clients to version 2.3.185 or later.; Check Cisco’s advisory for vendor-supported remediation guidance.; Remove unsupported legacy AnyConnect clients from Windows and Windows Mobile assets..

Prepared: Jun 28, 2026, 01:17 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jun 2, 2011, 19:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

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Source materials

CVE List V5 sourceCVE List V5
cisco-asmc-helper-code-execution(67739)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

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n/an/an/aListed

Weakness

CWE details

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