CVE-2012-1856: Microsoft Office MSCOMCTL.OCX Remote Code Execution Vulnerability
Reference page built from the source records below, each shown as its source publishes it. Dataset version ref-dfb093103a39, updated 2026-11-02T23:39:54.475Z.
CISA Known Exploited Vulnerabilities
- Name
- Microsoft Office MSCOMCTL.OCX Remote Code Execution Vulnerability
- Vendor
- Microsoft
- Product
- Office
- Added to the catalog
- 2022-03-03
- Due date for US federal agencies
- 2022-03-24
- Weaknesses
- CWE-94
- Catalog version
- 2026.10.30
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.
Required action (CISA)
Apply updates per vendor instructions.
Ransomware use: CISA does not mark known use of this vulnerability in ransomware campaigns.
Links in CISA's notes
Read on 2026-11-02T23:39:54.475Z under licence cisa-kev-cc0@b0067899 from https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json
NVD analysis
- Status
- Analyzed
- Published
- 2012-08-15T01:55:01.490
- Last modified
- 2026-06-16T23:40:26.290
- Weaknesses
- NVD-CWE-noinfo
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."
| Metric | Score | Severity | Vector | Scored by |
|---|---|---|---|---|
| CVSS 3.1 | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | [email protected] (Primary) |
| CVSS 3.1 | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
| CVSS 2.0 | 9.3 | HIGH | AV:N/AC:M/Au:N/C:C/I:C/A:C | [email protected] (Primary) |
References
- http://www.securityfocus.com/bid/54948 (Broken Link, Third Party Advisory, VDB Entry)
- http://www.us-cert.gov/cas/techalerts/TA12-227A.html (Third Party Advisory, US Government Resource)
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-060 (Patch, Vendor Advisory)
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15447 (Broken Link)
- http://www.securityfocus.com/bid/54948 (Broken Link, Third Party Advisory, VDB Entry)
- http://www.us-cert.gov/cas/techalerts/TA12-227A.html (Third Party Advisory, US Government Resource)
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-060 (Patch, Vendor Advisory)
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15447 (Broken Link)
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-1856 (US Government Resource)
This product uses the NVD API but is not endorsed or certified by the NVD.
Read on 2026-11-02T23:41:28.906Z under licence nvd-api-terms-of-use@ff2a5288 from https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2012-1856
CVE record
- Assigner
- microsoft
- State
- PUBLISHED
- Published
- 2012-08-15T01:00:00.000Z
- Updated
- 2025-10-22T00:05:46.865Z
- Problem types
- 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."
References
- MS12-060
- oval:org.mitre.oval:def:15447
- TA12-227A
- 54948
Read on 2026-11-03T00:24:10.133Z under licence cve-terms-of-use@81bfa2f3 from https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2012/1xxx/CVE-2012-1856.json
Sources and licences
CISA
Source: CISA Catalog of Known Exploited Vulnerabilities, version 2026.10.30, CC0 1.0. Use of this data does not imply endorsement by CISA or DHS.
National Vulnerability Database (NIST)
This product uses the NVD API but is not endorsed or certified by the NVD.
NVD API Terms of Use (NIST publications in the public domain, 17 U.S.C. 105)
CVE Program, The MITRE Corporation
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Cite this page
Dragons Eye Ransomware Tracker, "CVE-2012-1856: Microsoft Office MSCOMCTL.OCX Remote Code Execution Vulnerability",
entity page, dataset version ref-dfb093103a39, updated 2026-11-02T23:39:54.475Z,
https://ransomware-tracker.com/cve/CVE-2012-1856 (accessed 2026-11-03).
Underlying source: CISA Catalog of Known Exploited Vulnerabilities, version 2026.10.30.
Underlying source: National Vulnerability Database (NIST), CVE API 2.0, record last modified 2026-06-16T23:40:26.290.
Underlying source: CVE List (CVE Program, The MITRE Corporation), record updated 2025-10-22T00:05:46.865Z.
Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.