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Vulnerabilities

Vulnerability · CVE-2012-1856

Microsoft Office MSCOMCTL.OCX Remote Code Execution Vulnerability

Published Aug 14, 2012 · catalog updated Jun 16, 2026 · Microsoft Office

Patch now

CVE-2012-1856 is in the CISA known-exploited catalog, due Mar 24, 2022. Confirm Microsoft Office against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
High8.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
72.03%
Remediation
Remediation guidance
Affected products
cpe microsoft/commerce server · cpe microsoft/host integration server · cpe microsoft/office · vendor Microsoft Office · vendor n/a n/a

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."

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe microsoft/commerce server2002
  • cpe microsoft/commerce server2007
  • cpe microsoft/commerce server2009
  • cpe microsoft/host integration server2004
  • cpe microsoft/office2003
  • cpe microsoft/office2007
  • vendor Microsoft Officeversion unspecified
  • vendor n/a n/aversion unspecified

How to fix CVE-2012-1856

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2012-1856 is in the CISA known-exploited catalog, due Mar 24, 2022. Confirm Microsoft Office against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with microsoft/commerce server 2002; microsoft/commerce server 2007; microsoft/commerce server 2009; microsoft/host integration server 2004. Apply updates per vendor instructions.

What should an analyst verify?

CWE-94: Code Injection. EPSS 72.03%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 14, 2012 · Catalog

    Detected

    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.

  2. Mar 3, 2022 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Mar 24, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    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.

Sources

  • CISA KEVConfirmed exploitationCVE-2012-1856

    The TabStrip ActiveX control in the Common Controls in MSCOMCTL.OCX in Microsoft Office allows remote attackers to execute arbitrary code via a crafted (1) document or (2) web page that triggers system-state corruption.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2012-1856

    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

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2012-1856

    30-day exploitation probability 72.0%

    first.org
  • NIST NVDVulnerability recordCVE-2012-1856

    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

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2012-1856

    The TabStrip ActiveX control in the Common Controls in MSCOMCTL.OCX in Microsoft Office allows remote attackers to execute arbitrary code via a crafted (1) document or (2) web page that triggers system-state corruption.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.