CVSS 9.3 CRITICAL Bulletin: MS06-057 Published: 2006-09-27

CVE-2006-3730: Microsoft Internet Explorer WebVRML / WebControls ActiveX Buffer Overflow

Technical intelligence and weaponization dossier for CVE-2006-3730. Documented exploitation across 1 active malware families totaling 146 analyzed telemetry samples.

Attributed Families
1
Sample Volume
146
CVSS Vector
AV:N/AC:M/Au:N/C:C/I:C/A:C
Official NIST NVD
View NVD Record →

Vulnerability Specifications & Root Cause

Vulnerability ID CVE-2006-3730
Common Name / Bulletin Microsoft Internet Explorer WebVRML / WebControls ActiveX Buffer Overflow (MS06-057)
CWE Classification CWE-119: ActiveX Memory Corruption
Affected Software & Versions Microsoft Internet Explorer 6.0
Technical Root Cause ActiveX control vulnerability in WebVRML and WebControls allowing arbitrary memory overwrites when processing untrusted browser parameters via malicious websites.
Associated ATT&CK Techniques
  • T1189 — Associated ATT&CK Technique
  • T1204 — Associated ATT&CK Technique

Malware Families Weaponizing CVE-2006-3730

Empirical catalog telemetry verifies that the following 1 malware families weaponize this vulnerability for initial access, privilege escalation, or lateral movement:

1 families
Malware Family Category Catalog Samples Operational Profile
hupigonRat146Backdoor:Win32/Hupigon (universally known in China as Huigezi, translated as 'Grey Pigeon') is a classic, historically legendary Chinese Remote Access Trojan (R...

Attributed Threat Actors & Syndicates

Threat intelligence confirms the following adversaries weaponize CVE-2006-3730 in enterprise intrusions and campaign toolkits:

SOC Detection & Threat Hunting Guidance

Threat hunting leads and behavioral telemetry patterns to identify weaponized exploitation of CVE-2006-3730 in enterprise networks:

Internet Explorer (iexplore.exe) crashing with memory access violation followed by suspicious process lineage spawning rundll32.exe from temporary internet files.

Remediation & Defensive Hardening

SOC containment checklist and attack surface reduction measures to neutralize exploitation:

Actionable Guidance: Set ActiveX kill-bit for CLSID {22D6F312-B0F6-11D0-94AB-0080C74C7E95}; migrate endpoints to modern Chromium-based enterprise browsers.

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