Technical intelligence and weaponization dossier for CVE-2012-1889. Documented exploitation across 1 active malware families totaling 8 analyzed telemetry samples.
| Vulnerability ID | CVE-2012-1889 |
|---|---|
| Common Name / Bulletin | Microsoft XML Core Services Uninitialized Memory Access Vulnerability (MS12-043) |
| CWE Classification | CWE-908: Use of Uninitialized Resource in msxml3.dll |
| Affected Software & Versions | Microsoft XML Core Services 3.0, 4.0, 5.0, 6.0 |
| Technical Root Cause | MSXML improperly handled uninitialized memory when accessing XML definitions, enabling memory leak and arbitrary code execution through Internet Explorer drive-by vectors. |
| Associated ATT&CK Techniques |
Empirical catalog telemetry verifies that the following 1 malware families weaponize this vulnerability for initial access, privilege escalation, or lateral movement:
Threat hunting leads and behavioral telemetry patterns to identify weaponized exploitation of CVE-2012-1889 in enterprise networks:
Internet Explorer sessions instantiating Microsoft.XMLDOM ActiveX objects with definition attributes triggering access violations in msxml3.dll.SOC containment checklist and attack surface reduction measures to neutralize exploitation:
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