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

criticalknown exploitedCVE-2012-1856
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
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.

CSIRTS triage

vendor: Microsoftproduct: OfficeRemote code execution
What
The TabStrip ActiveX control in MSCOMCTL.OCX allows remote attackers to execute arbitrary code via a crafted document or web page.
Who is affected
Users of Microsoft Office are affected.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Update Microsoft Office to the latest version.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-03-03
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2012-1856

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2012-1856coverage & exploitation statusNVD · CVE.org

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