CVE-2006-3423

Downloader Activexcontrol vulnerability

CVSS

9.3

EPSS

8.6%

EPSS pct

95th

Exploited

No known

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.

Affected vendor

Webex Communications

Affected product

Downloader Activexcontrol

CVSS vector

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

Weakness type (CWE)

CWE-20 — Improper Input Validation

Published

2006-07-07

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring no authentication. Successful exploitation leads to complete impact to confidentiality, complete impact to integrity, complete impact to availability.

Its EPSS score of 8.6% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2006-3423

Confirm whether Webex Communications Downloader Activexcontrol is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2006-3423.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2006-3423

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2006-3423 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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