# CVE-2019-0541: MSHTML Engine Remote Code Execution Vulnerability CVE-2019-0541 is fixed in 36 products on 1 platform, first by KB4480961, released January 8, 2019. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021. Patch Radar priority: Patch now. - Web page: https://patchblox.com/security/cve/CVE-2019-0541 - Priority: Patch now - CVSS: 6.4 (Important) - EPSS: 0.5320 - CISA KEV: listed Nov 3, 2021, federal due date May 3, 2022 - Exploited (vendor report): no - Publicly disclosed: no - Vendor exploitability assessment: Exploitation More Likely - Published: Jan 8, 2019 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-0541 ## Description

A remote code execution vulnerability exists in the way that the MSHTML engine improperly validates input.

An attacker could execute arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

In a HTML editing attack scenario, an attacker could trick a user into editing a specially crafted file that is designed to exploit the vulnerability.

The security update addresses the vulnerability by modifying how MSHTML engine validates input.

## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Microsoft | Internet Explorer 10 on Windows Server 2012 | | [KB4480975](https://patchblox.com/security/data/fix/microsoft/kb4480975.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 10 on Windows Server 2012 | | [KB4480965](https://patchblox.com/security/data/fix/microsoft/kb4480965.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems | 14393.2724 | [KB4480961](https://patchblox.com/security/data/fix/microsoft/kb4480961.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems | 14393.2724 | [KB4480961](https://patchblox.com/security/data/fix/microsoft/kb4480961.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows 10 Version 1703 for 32-bit Systems | 15063.1563 | [KB4480973](https://patchblox.com/security/data/fix/microsoft/kb4480973.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows 10 Version 1703 for x64-based Systems | 15063.1563 | [KB4480973](https://patchblox.com/security/data/fix/microsoft/kb4480973.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems | 16299.904 | [KB4480978](https://patchblox.com/security/data/fix/microsoft/kb4480978.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows 10 Version 1709 for ARM64-based Systems | 16299.904 | [KB4480978](https://patchblox.com/security/data/fix/microsoft/kb4480978.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems | 16299.904 | [KB4480978](https://patchblox.com/security/data/fix/microsoft/kb4480978.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems | 17134.523 | [KB4480966](https://patchblox.com/security/data/fix/microsoft/kb4480966.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows 10 Version 1803 for ARM64-based Systems | 17134.523 | [KB4480966](https://patchblox.com/security/data/fix/microsoft/kb4480966.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems | 17134.523 | [KB4480966](https://patchblox.com/security/data/fix/microsoft/kb4480966.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows 10 Version 1809 for 32-bit Systems | 17763.253 | [KB4480116](https://patchblox.com/security/data/fix/microsoft/kb4480116.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows 10 Version 1809 for ARM64-based Systems | 17763.253 | [KB4480116](https://patchblox.com/security/data/fix/microsoft/kb4480116.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows 10 Version 1809 for x64-based Systems | 17763.253 | [KB4480116](https://patchblox.com/security/data/fix/microsoft/kb4480116.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows 10 for 32-bit Systems | 10240.18094 | [KB4480962](https://patchblox.com/security/data/fix/microsoft/kb4480962.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows 10 for x64-based Systems | 10240.18094 | [KB4480962](https://patchblox.com/security/data/fix/microsoft/kb4480962.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1 | | [KB4480970](https://patchblox.com/security/data/fix/microsoft/kb4480970.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1 | | [KB4480965](https://patchblox.com/security/data/fix/microsoft/kb4480965.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1 | | [KB4480970](https://patchblox.com/security/data/fix/microsoft/kb4480970.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1 | | [KB4480965](https://patchblox.com/security/data/fix/microsoft/kb4480965.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows 8.1 for 32-bit systems | | [KB4480963](https://patchblox.com/security/data/fix/microsoft/kb4480963.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows 8.1 for 32-bit systems | | [KB4480965](https://patchblox.com/security/data/fix/microsoft/kb4480965.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows 8.1 for x64-based systems | | [KB4480963](https://patchblox.com/security/data/fix/microsoft/kb4480963.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows 8.1 for x64-based systems | | [KB4480965](https://patchblox.com/security/data/fix/microsoft/kb4480965.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows RT 8.1 | | [KB4480963](https://patchblox.com/security/data/fix/microsoft/kb4480963.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4480970](https://patchblox.com/security/data/fix/microsoft/kb4480970.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4480965](https://patchblox.com/security/data/fix/microsoft/kb4480965.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows Server 2012 R2 | | [KB4480963](https://patchblox.com/security/data/fix/microsoft/kb4480963.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows Server 2012 R2 | | [KB4480965](https://patchblox.com/security/data/fix/microsoft/kb4480965.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows Server 2016 | 14393.2724 | [KB4480961](https://patchblox.com/security/data/fix/microsoft/kb4480961.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 11 on Windows Server 2019 | 17763.253 | [KB4480116](https://patchblox.com/security/data/fix/microsoft/kb4480116.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 9 on Windows Server 2008 for 32-bit Systems Service Pack 2 | | [KB4480968](https://patchblox.com/security/data/fix/microsoft/kb4480968.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 9 on Windows Server 2008 for 32-bit Systems Service Pack 2 | | [KB4480965](https://patchblox.com/security/data/fix/microsoft/kb4480965.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 9 on Windows Server 2008 for x64-based Systems Service Pack 2 | | [KB4480968](https://patchblox.com/security/data/fix/microsoft/kb4480968.md) | Jan 8, 2019 | | Microsoft | Internet Explorer 9 on Windows Server 2008 for x64-based Systems Service Pack 2 | | [KB4480965](https://patchblox.com/security/data/fix/microsoft/kb4480965.md) | Jan 8, 2019 | | Microsoft | Microsoft Excel Viewer 2007 Service Pack 3 | | [KB2596760](https://patchblox.com/security/data/fix/microsoft/kb2596760.md) | Jan 8, 2019 | | Microsoft | Microsoft Office 2010 Service Pack 2 (32-bit editions) | | [KB2553332](https://patchblox.com/security/data/fix/microsoft/kb2553332.md) | Jan 8, 2019 | | Microsoft | Microsoft Office 2010 Service Pack 2 (64-bit editions) | | [KB2553332](https://patchblox.com/security/data/fix/microsoft/kb2553332.md) | Jan 8, 2019 | | Microsoft | Microsoft Office 2013 RT Service Pack 1 | | [KB3172522](https://patchblox.com/security/data/fix/microsoft/kb3172522.md) | Jan 8, 2019 | | Microsoft | Microsoft Office 2013 Service Pack 1 (32-bit editions) | | [KB3172522](https://patchblox.com/security/data/fix/microsoft/kb3172522.md) | Jan 8, 2019 | | Microsoft | Microsoft Office 2013 Service Pack 1 (64-bit editions) | | [KB3172522](https://patchblox.com/security/data/fix/microsoft/kb3172522.md) | Jan 8, 2019 | | Microsoft | Microsoft Office 2016 (32-bit edition) | | [KB4022162](https://patchblox.com/security/data/fix/microsoft/kb4022162.md) | Jan 8, 2019 | | Microsoft | Microsoft Office 2016 (64-bit edition) | | [KB4022162](https://patchblox.com/security/data/fix/microsoft/kb4022162.md) | Jan 8, 2019 | | Microsoft | Microsoft Office Word Viewer | | [KB4462112](https://patchblox.com/security/data/fix/microsoft/kb4462112.md) | Jan 8, 2019 | --- Data as of 2026-11-07T18:46:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.