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An ActiveX control in gwcls1.dll in the client in Novell GroupWise 8.0 before 8.0.3 HP2 and 2012 before SP1 HP1 allows remote attackers to execute arbitrary code via (1) a pointer argument to the SetEngine method or (2) an XPItem pointer argument to an unspecified method.
Use CWE-94, Novell vendor hub and Groupwise product page to widen CVE-2012-0439 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2014-0610, CVE-2013-0804 and CVE-2016-5762 for nearby disclosures in the same product family.