Skip to main content


MS12-060: Addressing a vulnerability in MSCOMCTL.OCX's TabStrip control

Tuesday, August 14, 2012

Today we released MS12-060, addressing a potential remote code execution vulnerability in MSCOMCTL.OCX, the binary included with a number of Microsoft products to provide a set of common ActiveX controls. Limited, targeted attacks exploiting CVE-2012-1856 MS12-060 is on the list of high priority updates for this month for two reasons: we are aware of very limited, targeted attacks taking advantage of CVE-2012-1856 and we expect to see new attacks taking advantage of this vulnerability in days ahead.

MS12-027: Enhanced protections regarding ActiveX controls in Microsoft Office documents

Tuesday, April 10, 2012

Security Update MS12-027 addresses a code execution vulnerability in MSCOMCTL.OCX, the Windows Common Controls ActiveX control. By default, this component is included with all 32-bit versions of Microsoft Office. We’d like to cover the following topics in this blog post: Limited, targeted attacks leveraging this vulnerability Mitigations in recent versions of Office to reduce the risk Extra protections to block all or specific ActiveX controls in Office documents The new Office 2010 kill bit feature Limited, targeted attacks leveraging this vulnerability

MS08-041 : The Microsoft Access Snapshot Viewer ActiveX control

Tuesday, August 12, 2008

MS08-041 fixes a vulnerability in the Microsoft Access Snapshot Viewer ActiveX control. It’s an interesting vulnerability so we wanted to go into more detail about platforms at reduced risk and also more about the servicing strategy for this vulnerability. Windows Vista at reduced risk? We first heard about this vulnerability from customers sending in reports of active attacks.

Why there won't be a security update for WkImgSrv.dll

Thursday, June 05, 2008

Recently, there was a public post in milw0rm (, talking about an issue in the ActiveX control of Microsoft Works 7 WkImgSrv.dll. The PoC claims that it would achieve remote code execution. McAfee Avert Labs Blog also had a post about this ( At first glance the issue sounds serious, right?

Not safe = not dangerous? How to tell if ActiveX vulnerabilities are exploitable in Internet Explorer

Sunday, February 03, 2008

In early January you may have read posts on security distribution lists regarding two ActiveX Controls released by Microsoft. We have investigated those controls and fortunately, they are not exploitable since IE does not treat them as being safe. We wanted to give you some background on how to evaluate whether a potential vulnerability found in an ActiveX control is an exploitable condition in Internet Explorer.