Microsoft Office MSCOMCTL.OCX Remote Code Execution Vulnerability (CVE-2012-1856)
Severity: high · Patch status: patched · Since 2022-03-03 · CVE-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 added CVE-2012-1856 to its Known Exploited Vulnerabilities catalog on Mar 3, 2022, which means attackers are exploiting it in the wild.
What to do
- Apply updates per vendor instructions.
- US federal agencies must remediate by Mar 24, 2022 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
