Vulnerability Intelligence Report
Microsoft MSHTML Remote Code Execution Vulnerability
CVE-2019-0541
A remote code execution vulnerability exists in the way that the MSHTML engine inproperly validates input, aka "MSHTML Engine Remote Code Execution Vulnerability." This affects Microsoft Office, Microsoft Office Word Viewer, Internet Explorer 9, Internet Explorer 11, Microsoft Excel Viewer, Internet Explorer 10, Office 365 ProPlus.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
8.8
HIGH
Exploitability:2.9
Impact Score:5.9
EPSS Probability:53.20%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-77 ↗CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Microsoft | Microsoft Office | 2010 Service Pack 2 (32-bit editions) (affected), 2010 Service Pack 2 (64-bit editions) (affected), 2013 RT Service Pack 1 (affected), 2013 Service Pack 1 (32-bit editions) (affected), 2013 Service Pack 1 (64-bit editions) (affected), 2016 (32-bit edition) (affected), 2016 (64-bit edition) (affected), 2019 for 32-bit editions (affected), 2019 for 64-bit editions (affected) |
| Microsoft | Microsoft Office Word Viewer | Microsoft Office Word Viewer (affected) |
| Microsoft | Internet Explorer 9 | Windows Server 2008 for 32-bit Systems Service Pack 2 (affected), Windows Server 2008 for x64-based Systems Service Pack 2 (affected) |
| Microsoft | Internet Explorer 11 | Windows 10 for 32-bit Systems (affected), Windows 10 for x64-based Systems (affected), Windows 10 Version 1607 for 32-bit Systems (affected), Windows 10 Version 1607 for x64-based Systems (affected), Windows 10 Version 1703 for 32-bit Systems (affected), Windows 10 Version 1703 for x64-based Systems (affected), Windows 10 Version 1709 for 32-bit Systems (affected), Windows 10 Version 1709 for ARM64-based Systems (affected), Windows 10 Version 1709 for x64-based Systems (affected), Windows 10 Version 1803 for 32-bit Systems (affected), Windows 10 Version 1803 for ARM64-based Systems (affected), Windows 10 Version 1803 for x64-based Systems (affected), Windows 10 Version 1809 for 32-bit Systems (affected), Windows 10 Version 1809 for ARM64-based Systems (affected), Windows 10 Version 1809 for x64-based Systems (affected), Windows 7 for 32-bit Systems Service Pack 1 (affected), Windows 7 for x64-based Systems Service Pack 1 (affected), Windows 8.1 for 32-bit systems (affected), Windows 8.1 for x64-based systems (affected), Windows RT 8.1 (affected), Windows Server 2008 R2 for x64-based Systems Service Pack 1 (affected), Windows Server 2012 R2 (affected), Windows Server 2016 (affected), Windows Server 2019 (affected) |
| Microsoft | Microsoft Excel Viewer | 2007 Service Pack 3 (affected) |
| Microsoft | Internet Explorer 10 | Windows Server 2012 (affected) |
| Microsoft | Office | 365 ProPlus for 32-bit Systems (affected), 365 ProPlus for 64-bit Systems (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2018-11-26T00:00:00 |
| Published | 2019-01-08T21:00:00 |
| Patch Date | 2019-01-08 |
| Last Updated | 2025-10-21T23:45:44 |
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