CVE-2012-1856
Microsoft Office MSCOMCTL.OCX Remote Code Execution Vulnerability
Microsoft · Office
Vulnerability details
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.
Added to CISA KEV: 2022-03-03
Ransomware campaign use: Unknown
CISA due date: 2022-03-24
Defensive guidance from CISA
Apply updates per vendor instructions.
This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.
Source catalog date: 2026-11-06T19:44:45.1797Z · Last retrieved: 2026-11-06 21:02:26 UTC