CVE-2012-1856 Microsoft Office MSCOMCTL.OCX Remote Code Execution
Remote attackers can execute arbitrary code via crafted documents or web pages exploiting a memory corruption flaw in the MSCOMCTL.OCX ActiveX control.
- Exploited in the wild
- Since 3 Mar 2022
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2012-1856?
CVE-2012-1856 is a high-severity memory corruption vulnerability in Microsoft Office, published on 15 Aug 2012. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The TabStrip ActiveX control in the Common Controls in MSCOMCTL.OCX in Microsoft Office 2003 SP3, Office 2003 Web Components SP3, Office 2007 SP2 and SP3, Office 2010 SP1, SQL Server 2000 SP4, SQL Server 2005 SP4, SQL Server 2008 SP2, SP3, R2, R2 SP1, and R2 SP2, Commerce Server 2002 SP4, Commerce Server 2007 SP2, Commerce Server 2009 Gold and R2, Host Integration Server 2004 SP1, Visual FoxPro 8.0 SP1, Visual FoxPro 9.0 SP2, and Visual Basic 6.0 Runtime allows remote attackers to execute arbitrary code via a crafted (1) document or (2) web page that triggers system-state corruption, aka "MSCOMCTL.OCX RCE Vulnerability."
Which versions are affected by CVE-2012-1856?
It affects 7 products.
Products include Microsoft Commerce Server, Microsoft Host Integration Server, Microsoft Office, Microsoft Office Web Components, Microsoft Sql Server, Microsoft Visual Basic and 1 more.
How do I fix CVE-2012-1856?
No fix has been published for CVE-2012-1856 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 24 Mar 2022.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2012-1856 being exploited?
Yes. Attackers have exploited CVE-2012-1856 in the wild since at least 3 Mar 2022.
Other vulnerabilities in Microsoft Office
Sources
Also known as GHSA-q2jx-rgv9-xm3x.