{"id":"CVE-2006-6334","aliases":["EUVD-2006-6317","GHSA-mrvm-74cr-9fh4"],"status":"published","title":"Heap-based buffer overflow in the SendChannelData function in wfica.ocx in Citrix Presentation...","description":"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.","severity":{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.3663,"percentile":0.98508,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2006-12-08T01:00:00Z","modified":"2026-06-16T22:32:54Z","exploits":[{"source":"exploitdb","id":"EDB-5106","title":"Citrix Presentation Server Client - 'WFICA.OCX' ActiveX Heap Buffer Overflow","type":"remote","platform":"windows","date":"2008-02-12","verified":true,"url":"https://www.exploit-db.com/exploits/5106"}],"products":[{"vendor":"citrix","product":"presentation_server_client"}],"references":[{"url":"http://secunia.com/advisories/23246","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://securityreason.com/securityalert/1995","tags":["third-party-advisory","x_refsource_SREASON","x_transferred"]},{"url":"http://www.vupen.com/english/advisories/2006/4865","tags":["vdb-entry","x_refsource_VUPEN","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/30740","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.securityfocus.com/bid/21458","tags":["vdb-entry","x_refsource_BID","x_transferred","Vendor Advisory"]},{"url":"https://www.exploit-db.com/exploits/5106","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred"]},{"url":"http://www.kb.cert.org/vuls/id/210969","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","US Government Resource"]},{"url":"http://www.tippingpoint.com/security/advisories/TSRT-06-15.html","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Vendor Advisory"]},{"url":"http://support.citrix.com/article/CTX111827","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Patch","Vendor Advisory"]},{"url":"http://fortconsult.net/files/fortconsult.dk/citrix_advisory_dec2006.pdf","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://securitytracker.com/id?1017343","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.citrix.com/English/SS/downloads/downloads.asp?dID=2755","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.securityfocus.com/archive/1/453760/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2006-6334"},{"url":"https://github.com/advisories/GHSA-mrvm-74cr-9fh4"}],"sources":{"cve":[{"id":"CVE-2006-6334","description":"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.","status":"published","published":"2006-12-08T01:00:00Z","modified":"2024-08-07T20:19:35.175Z","updated_at":"2026-11-02T14:33:50.374603Z"}],"euvd":[{"id":"EUVD-2006-6317","description":"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.","status":"published","published":"2006-12-08T01:00:00Z","modified":"2024-08-07T20:19:35Z","updated_at":"2026-11-03T01:15:43.868899Z"}],"ghsa":[{"id":"GHSA-mrvm-74cr-9fh4","title":"Heap-based buffer overflow in the SendChannelData function in wfica.ocx in Citrix Presentation...","description":"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.","status":"published","published":"2022-05-01T07:36:56Z","modified":"2023-01-31T05:02:51Z","updated_at":"2026-11-02T14:48:20.805498Z"}],"nvd":[{"id":"CVE-2006-6334","description":"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.","status":"published","published":"2006-12-08T01:28:00Z","modified":"2026-06-16T22:32:54.867Z","cvss":[{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:01:09.852738Z"}]}}