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Vulnerability record · CVE-2007-3679 · published 25 July 2007

CVE-2007-3679: Citrix access gateway vulnerability

Citrix · Access Gateway

The Citrix EPA ActiveX control (aka the "endpoint checking control" or CCAOControl Object) before 4.5.0.0 in npCtxCAO.dll in Citrix Access Gateway Standard Edition before 4.5.5 and Advanced Edition before 4.5 HF1 allows remote attackers to download and execute arbitrary programs onto a client system.

4.3 CVSS 2.0 Medium EPSS 1.7% · top 24.1%
4.3CVSS 2.0 base score
1.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
22References
16 Jun 2026Last modified by NVD

Description

The Citrix EPA ActiveX control (aka the "endpoint checking control" or CCAOControl Object) before 4.5.0.0 in npCtxCAO.dll in Citrix Access Gateway Standard Edition before 4.5.5 and Advanced Edition before 4.5 HF1 allows remote attackers to download and execute arbitrary programs onto a client system.

AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://osvdb.org/37845
http://secunia.com/advisories/26143 PatchVendor Advisory
http://securityreason.com/securityalert/2916
http://support.citrix.com/article/CTX113815 Patch
http://support.citrix.com/article/CTX114028 Patch
http://www.securityfocus.com/archive/1/474204/100/0/threaded
http://www.securityfocus.com/bid/24865
http://www.securityfocus.com/bid/24975 Patch
http://www.symantec.com/content/en/us/enterprise/research/SYMSA-2007-006.txt
http://www.vupen.com/english/advisories/2007/2583
https://exchange.xforce.ibmcloud.com/vulnerabilities/35511
http://osvdb.org/37845
http://secunia.com/advisories/26143 PatchVendor Advisory
http://securityreason.com/securityalert/2916
http://support.citrix.com/article/CTX113815 Patch
http://support.citrix.com/article/CTX114028 Patch
http://www.securityfocus.com/archive/1/474204/100/0/threaded
http://www.securityfocus.com/bid/24865
http://www.securityfocus.com/bid/24975 Patch
http://www.symantec.com/content/en/us/enterprise/research/SYMSA-2007-006.txt
http://www.vupen.com/english/advisories/2007/2583
https://exchange.xforce.ibmcloud.com/vulnerabilities/35511

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2008-2528Citrix access gateway improper authentication vulnerabilityUnspecified vulnerability in Citrix Access Gateway Standard Edition 4.5.7 and earlier and Advanced Edition 4.5 HF2 and earlier allows attackers to by…EPSS 2.7%9.3CVE-2011-2882Citrix Access Gateway ActiveX control stack buffer overflowThe NSEPA.NsepaCtrl.1 ActiveX control in nsepa.ocx shipped with Citrix Access Gateway Enterprise Edition contains a stack-based buffer overflow (CWE-…EPSS 56%analysed9.3CVE-2011-2883Citrix access gateway improper input validation vulnerabilityThe NSEPA.NsepaCtrl.1 ActiveX control in nsepa.ocx in Citrix Access Gateway Enterprise Edition 8.1 before 8.1-67.7, 9.0 before 9.0-70.5, and 9.1 befo…EPSS 1.5%9.3CVE-2010-4566Citrix access gateway vulnerabilityThe web authentication form in the NT4 authentication component in Citrix Access Gateway Enterprise Edition 9.2-49.8 and earlier, and the NTLM authen…EPSS 28%9.3CVE-2007-4013Citrix access gateway vulnerabilityMultiple unspecified vulnerabilities in (1) Net6Helper.DLL (aka Net6Launcher Class) 4.5.2 and earlier, (2) npCtxCAO.dll (aka Citrix Endpoint Analysis…EPSS 4.2%7.6CVE-2007-4017Citrix access gateway vulnerabilityCross-site request forgery (CSRF) vulnerability in the web-based administration console in Citrix Access Gateway before firmware 4.5.5 allows remote …EPSS 2.5%6.8CVE-2007-4016Citrix access gateway vulnerabilityUnspecified vulnerability in the client components in Citrix Access Gateway Standard Edition before 4.5.5 and Advanced Edition before 4.5 HF1 allows …EPSS 2.2%6.8CVE-2007-4018Citrix access gateway vulnerabilityCitrix Access Gateway Advanced Edition before firmware 4.5.5 allows attackers to redirect users to arbitrary web sites and conduct phishing attacks v…EPSS 1.3%

Source: NIST National Vulnerability Database (record CVE-2007-3679), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.