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CVE-2019-0541: Microsoft MSHTML Remote Code Execution Vulnerability

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2021-11-03
• EPSS: 53.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-01-08 · updated 2026-06-17
• Weakness: CWE-77

Description

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.

Affected products

• Microsoft Excel Viewer: 2007-sp3
• Microsoft Internet Explorer 11: 11, 9, 10
• Microsoft Office: 2010-sp2, 2013-sp1, 2016, 2019
• Microsoft Office 365 ProPlus: all versions
• Microsoft Office Word Viewer: all versions
• Microsoft Excel Viewer: 2007 Service Pack 3
• Microsoft Internet Explorer 11: Windows 10 for 32-bit Systems, Windows 10 for x64-based Systems, Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows 10 Version 1703 for 32-bit Systems, Windows 10 Version 1703 for x64-based Systems (+18)
• Microsoft Internet Explorer 10: Windows Server 2012
• Microsoft Internet Explorer 9: Windows Server 2008 for 32-bit Systems Service Pack 2, Windows Server 2008 for x64-based Systems Service Pack 2
• Microsoft Office: 2010 Service Pack 2 (32-bit editions), 2010 Service Pack 2 (64-bit editions), 2013 RT Service Pack 1, 2013 Service Pack 1 (32-bit editions), 2013 Service Pack 1 (64-bit editions), 2016 (32-bit edition) (+3)
• Microsoft Office Word Viewer: Microsoft Office Word Viewer

References

• http://www.securityfocus.com/bid/106402
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0541
• https://www.exploit-db.com/exploits/46536/
• http://www.securityfocus.com/bid/106402
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0541
• https://www.exploit-db.com/exploits/46536/
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-0541

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