CVE-2007-4013: Citrix Access Gateway

High severity, CVSS 9.3. EPSS: 4.2% chance of exploitation in the next 30 days.

Multiple unspecified vulnerabilities in (1) Net6Helper.DLL (aka Net6Launcher Class) 4.5.2 and earlier, (2) npCtxCAO.dll (aka Citrix Endpoint Analysis Client) in a Firefox plugin directory, and (3) a second npCtxCAO.dll (aka CCAOControl Object) before 4.5.0.0 in Citrix Access Gateway Standard Edition before 4.5.5 and Advanced Edition before 4.5 HF1 have unknown impact and attack vectors, possibly related to buffer overflows. NOTE: vector 3 might overlap CVE-2007-3679.

Affected products

• Citrix Access Gateway: up to and including 4.5
• Citrix Endpoint Analysis Client: any version
• Mozilla Firefox: any version

Published 2007-07-26. Last modified 2026-06-16.