9.3

CVE-2012-1856: Microsoft Office MSCOMCTL.OCX Remote Code Execution Vulnerability

CVSS: 9.3v2.0HighKEVAnalyzed
Published 15-08-2012Last modified 22-10-2025
Open JSON

Vulnerability summary

CVE-2012-1856 is a high (CVSS 9.3) vulnerability in Microsoft Office. It is known to be exploited: CISA lists it, first on 03-03-2022. EPSS estimates a 72.03% chance of exploitation in the next 30 days, higher than 99.4% of scored vulnerabilities.

Overall risk
85/100
0100
Critical · default modelHow is this calculated?
CVSS score
9.3/10
010
High · v2.0 (NVD)
EPSS score
72.03%
0%100%
Critical · -0.19 pp in 30 days
KEVListedCISA
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 15-08-2012
    PublishedVulnerability first disclosed.
  2. 03-03-2022
    Added to CISA KEVMicrosoft Office MSCOMCTL.OCX Remote Code Execution Vulnerability
  3. 24-03-2022
    CISA remediation dueApply updates per vendor instructions.
  4. 22-10-2025
    Last modifiedVulnerability information updated.

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."

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

72.03%

Chance of exploitation in the next 30 days

Percentile

99%

Versus all other CVEs

30-day change

-0.19 pp

From 72.22% on 19-09-2026

19-09-202619-10-2026
EPSS score
72.03%

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
03-03-2022
Federal due date
24-03-2022

CISA required action

Apply updates per vendor instructions. nvd.nist.gov/vuln/detail/CVE-2012-1856

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Microsoft7 products

1 vendor · 7 products

References

5 links