CVE-2006-6334
Heap-based buffer overflow in the SendChannelData function in wfica.ocx in Citrix Presentation...
Heap-based buffer overflow in the SendChannelData function in wfica.ocx in Citrix Presentation Server Client before 9.230 for Windows allows remote malicious web sites to execute arbitrary code via a DataSize parameter that is less than the length of the Data buffer.
Exploit likelihood
What each source reports
NVD Score used
Heap-based buffer overflow in the SendChannelData function in wfica.ocx in Citrix Presentation Server Client before 9.230 for Windows allows remote malicious web sites to execute arbitrary code via a DataSize parameter that is less than the length of the Data buffer.
- Record
CVE-2006-6334- CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
Heap-based buffer overflow in the SendChannelData function in wfica.ocx in Citrix Presentation Server Client before 9.230 for Windows allows remote malicious web sites to execute arbitrary code via a DataSize parameter that is less than the length of the Data buffer.
- Record
CVE-2006-6334- Updated
- 2026-11-02
EUVDEUVD-2006-6317 No score
Heap-based buffer overflow in the SendChannelData function in wfica.ocx in Citrix Presentation Server Client before 9.230 for Windows allows remote malicious web sites to execute arbitrary code via a DataSize parameter that is less than the length of the Data buffer.
- Record
EUVD-2006-6317- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-mrvm-74cr-9fh4 No score
Heap-based buffer overflow in the SendChannelData function in wfica.ocx in Citrix Presentation...
Heap-based buffer overflow in the SendChannelData function in wfica.ocx in Citrix Presentation Server Client before 9.230 for Windows allows remote malicious web sites to execute arbitrary code via a DataSize parameter that is less than the length of the Data buffer.
- Record
GHSA-mrvm-74cr-9fh4- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Citrix Presentation Server Client - 'WFICA.OCX' ActiveX Heap Buffer Overflow | 2008-02-12 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2006-6334 is a medium vulnerability (CVSS 6.8) in Citrix Presentation Server Client, published December 8, 2006. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 36.6%, the 98th percentile. No source names a fixed version.
References
secunia.com/advisories/23246
securityreason.com/securityalert/1995
vupen.com/english/advisories/2006/4865
exchange.xforce.ibmcloud.com/vulnerabilities/30740
securityfocus.com/bid/21458
exploit-db.com/exploits/5106
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kb.cert.org/vuls/id/210969
tippingpoint.com/security/advisories/TSRT-06-15.html
support.citrix.com/article/CTX111827
fortconsult.net/files/fortconsult.dk/citrix_advisory_dec2006.pdf
securitytracker.com/id?1017343
citrix.com/English/SS/downloads/downloads.asp?dID=2755
nvd.nist.gov/vuln/detail/CVE-2006-6334
github.com/advisories/GHSA-mrvm-74cr-9fh4