CVE-2006-3423
CVE-2006-3423 is a critical-severity vulnerability in Webex Communications Downloader Activexcontrol with a CVSS 2.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.
Key facts
- Severity: Critical (CVSS 2.0 base score 9.3)
- EPSS exploit prediction: 9% (94th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-20
- Affected product: Webex Communications Downloader Activexcontrol
- Published:
- Last modified:
Description
WebEx Downloader ActiveX Control and WebEx Downloader Java before 2.1.0.0 do not validate downloaded components, which allows remote attackers to execute arbitrary code via a website that activates the GpcUrlRoot and GpcIniFileName ActiveX controls to cause the client to download a DLL file.
Frequently asked questions
- What is CVE-2006-3423?
- WebEx Downloader ActiveX Control and WebEx Downloader Java before 2.1.0.0 do not validate downloaded components, which allows remote attackers to execute arbitrary code via a website that activates the GpcUrlRoot and GpcIniFileName ActiveX controls to cause the client to download a DLL file.
- How severe is CVE-2006-3423?
- CVE-2006-3423 has a CVSS 2.0 base score of 9.3, rated critical severity.
- Is CVE-2006-3423 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2006-3423?
- CVE-2006-3423 primarily affects Webex Communications Downloader Activexcontrol. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2006-3423?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2006-3423 published?
- CVE-2006-3423 was published on 2006-07-07 and last updated on 2026-06-16.
References
- http://secunia.com/advisories/20956
- http://securitytracker.com/id?1016446
- http://www.osvdb.org/27039
- http://www.osvdb.org/27040
- http://www.securityfocus.com/archive/1/439496/100/0/threaded
- http://www.securityfocus.com/bid/18860
- http://www.vupen.com/english/advisories/2006/2688
- http://www.webex.com/lp/security/ActiveAdv.html?TrackID=123456
- http://www.zerodayinitiative.com/advisories/ZDI-06-021.html
- http://xforce.iss.net/xforce/alerts/id/226
- https://exchange.xforce.ibmcloud.com/vulnerabilities/24370
Affected products (2)
- cpe:2.3:a:webex_communications:downloader_activexcontrol:2.0.0.7:*:*:*:*:*:*:*
- cpe:2.3:a:webex_communications:downloader_java:2.0.0.9:*:*:*:*:*:*:*
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