# CVE-2019-0784: Windows ActiveX Remote Code Execution Vulnerability CVE-2019-0784 is fixed in 38 products on 1 platform, first by KB4489882, released March 12, 2019. It is not reported as exploited. Patch Radar priority: Urgent. - Web page: https://patchblox.com/security/cve/CVE-2019-0784 - Priority: Urgent - CVSS: 4.2 (Critical) - EPSS: 0.0826 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Vendor exploitability assessment: Exploitation Less Likely - Published: Mar 12, 2019 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-0784 ## Description

A remote code execution vulnerability exists in the way that the ActiveX Data objects (ADO) handles objects in memory. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as 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 web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Internet Explorer and then convince a user to view the website. An attacker could also embed an ActiveX control marked "safe for initialization" in an application or Microsoft Office document that hosts the IE rendering engine. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability.

The security update addresses the vulnerability by modifying how the ActiveX Data objects handles objects in memory.

## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Microsoft | Windows 10 Version 1607 for 32-bit Systems | 14393.2848 | [KB4489882](https://patchblox.com/security/data/fix/microsoft/kb4489882.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1607 for x64-based Systems | 14393.2848 | [KB4489882](https://patchblox.com/security/data/fix/microsoft/kb4489882.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1703 for 32-bit Systems | 15063.1689 | [KB4489871](https://patchblox.com/security/data/fix/microsoft/kb4489871.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1703 for x64-based Systems | 15063.1689 | [KB4489871](https://patchblox.com/security/data/fix/microsoft/kb4489871.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1709 for 32-bit Systems | 16299.1029 | [KB4489886](https://patchblox.com/security/data/fix/microsoft/kb4489886.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1709 for ARM64-based Systems | 16299.1029 | [KB4489886](https://patchblox.com/security/data/fix/microsoft/kb4489886.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1709 for x64-based Systems | 16299.1029 | [KB4489886](https://patchblox.com/security/data/fix/microsoft/kb4489886.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1803 for 32-bit Systems | 17134.648 | [KB4489868](https://patchblox.com/security/data/fix/microsoft/kb4489868.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1803 for ARM64-based Systems | 17134.648 | [KB4489868](https://patchblox.com/security/data/fix/microsoft/kb4489868.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1803 for x64-based Systems | 17134.648 | [KB4489868](https://patchblox.com/security/data/fix/microsoft/kb4489868.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1809 for 32-bit Systems | 17763.379 | [KB4489899](https://patchblox.com/security/data/fix/microsoft/kb4489899.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1809 for ARM64-based Systems | 17763.379 | [KB4489899](https://patchblox.com/security/data/fix/microsoft/kb4489899.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1809 for x64-based Systems | 17763.379 | [KB4489899](https://patchblox.com/security/data/fix/microsoft/kb4489899.md) | Mar 12, 2019 | | Microsoft | Windows 10 for 32-bit Systems | 10240.18158 | [KB4489872](https://patchblox.com/security/data/fix/microsoft/kb4489872.md) | Mar 12, 2019 | | Microsoft | Windows 10 for x64-based Systems | 10240.18158 | [KB4489872](https://patchblox.com/security/data/fix/microsoft/kb4489872.md) | Mar 12, 2019 | | Microsoft | Windows 7 for 32-bit Systems Service Pack 1 | | [KB4489878](https://patchblox.com/security/data/fix/microsoft/kb4489878.md) | Mar 12, 2019 | | Microsoft | Windows 7 for 32-bit Systems Service Pack 1 | | [KB4489885](https://patchblox.com/security/data/fix/microsoft/kb4489885.md) | Mar 12, 2019 | | Microsoft | Windows 7 for x64-based Systems Service Pack 1 | | [KB4489878](https://patchblox.com/security/data/fix/microsoft/kb4489878.md) | Mar 12, 2019 | | Microsoft | Windows 7 for x64-based Systems Service Pack 1 | | [KB4489885](https://patchblox.com/security/data/fix/microsoft/kb4489885.md) | Mar 12, 2019 | | Microsoft | Windows 8.1 for 32-bit systems | | [KB4489883](https://patchblox.com/security/data/fix/microsoft/kb4489883.md) | Mar 12, 2019 | | Microsoft | Windows 8.1 for 32-bit systems | | [KB4489881](https://patchblox.com/security/data/fix/microsoft/kb4489881.md) | Mar 12, 2019 | | Microsoft | Windows 8.1 for x64-based systems | | [KB4489883](https://patchblox.com/security/data/fix/microsoft/kb4489883.md) | Mar 12, 2019 | | Microsoft | Windows 8.1 for x64-based systems | | [KB4489881](https://patchblox.com/security/data/fix/microsoft/kb4489881.md) | Mar 12, 2019 | | Microsoft | Windows RT 8.1 | | [KB4489881](https://patchblox.com/security/data/fix/microsoft/kb4489881.md) | Mar 12, 2019 | | Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | | [KB4489878](https://patchblox.com/security/data/fix/microsoft/kb4489878.md) | Mar 12, 2019 | | Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | | [KB4489885](https://patchblox.com/security/data/fix/microsoft/kb4489885.md) | Mar 12, 2019 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4489878](https://patchblox.com/security/data/fix/microsoft/kb4489878.md) | Mar 12, 2019 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4489885](https://patchblox.com/security/data/fix/microsoft/kb4489885.md) | Mar 12, 2019 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB4489878](https://patchblox.com/security/data/fix/microsoft/kb4489878.md) | Mar 12, 2019 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB4489885](https://patchblox.com/security/data/fix/microsoft/kb4489885.md) | Mar 12, 2019 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 | | [KB4489876](https://patchblox.com/security/data/fix/microsoft/kb4489876.md) | Mar 12, 2019 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 | | [KB4489880](https://patchblox.com/security/data/fix/microsoft/kb4489880.md) | Mar 12, 2019 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | | [KB4489876](https://patchblox.com/security/data/fix/microsoft/kb4489876.md) | Mar 12, 2019 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | | [KB4489880](https://patchblox.com/security/data/fix/microsoft/kb4489880.md) | Mar 12, 2019 | | Microsoft | Windows Server 2008 for Itanium-Based Systems Service Pack 2 | | [KB4489876](https://patchblox.com/security/data/fix/microsoft/kb4489876.md) | Mar 12, 2019 | | Microsoft | Windows Server 2008 for Itanium-Based Systems Service Pack 2 | | [KB4489880](https://patchblox.com/security/data/fix/microsoft/kb4489880.md) | Mar 12, 2019 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 | | [KB4489876](https://patchblox.com/security/data/fix/microsoft/kb4489876.md) | Mar 12, 2019 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 | | [KB4489880](https://patchblox.com/security/data/fix/microsoft/kb4489880.md) | Mar 12, 2019 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | | [KB4489876](https://patchblox.com/security/data/fix/microsoft/kb4489876.md) | Mar 12, 2019 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | | [KB4489880](https://patchblox.com/security/data/fix/microsoft/kb4489880.md) | Mar 12, 2019 | | Microsoft | Windows Server 2012 | | [KB4489884](https://patchblox.com/security/data/fix/microsoft/kb4489884.md) | Mar 12, 2019 | | Microsoft | Windows Server 2012 | | [KB4489891](https://patchblox.com/security/data/fix/microsoft/kb4489891.md) | Mar 12, 2019 | | Microsoft | Windows Server 2012 (Server Core installation) | | [KB4489884](https://patchblox.com/security/data/fix/microsoft/kb4489884.md) | Mar 12, 2019 | | Microsoft | Windows Server 2012 (Server Core installation) | | [KB4489891](https://patchblox.com/security/data/fix/microsoft/kb4489891.md) | Mar 12, 2019 | | Microsoft | Windows Server 2012 R2 | | [KB4489883](https://patchblox.com/security/data/fix/microsoft/kb4489883.md) | Mar 12, 2019 | | Microsoft | Windows Server 2012 R2 | | [KB4489881](https://patchblox.com/security/data/fix/microsoft/kb4489881.md) | Mar 12, 2019 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4489883](https://patchblox.com/security/data/fix/microsoft/kb4489883.md) | Mar 12, 2019 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4489881](https://patchblox.com/security/data/fix/microsoft/kb4489881.md) | Mar 12, 2019 | | Microsoft | Windows Server 2016 | 14393.2848 | [KB4489882](https://patchblox.com/security/data/fix/microsoft/kb4489882.md) | Mar 12, 2019 | | Microsoft | Windows Server 2016 (Server Core installation) | 14393.2848 | [KB4489882](https://patchblox.com/security/data/fix/microsoft/kb4489882.md) | Mar 12, 2019 | | Microsoft | Windows Server 2019 | 17763.379 | [KB4489899](https://patchblox.com/security/data/fix/microsoft/kb4489899.md) | Mar 12, 2019 | | Microsoft | Windows Server 2019 (Server Core installation) | 17763.379 | [KB4489899](https://patchblox.com/security/data/fix/microsoft/kb4489899.md) | Mar 12, 2019 | | Microsoft | Windows Server, version 1709 (Server Core Installation) | 16299.1029 | [KB4489886](https://patchblox.com/security/data/fix/microsoft/kb4489886.md) | Mar 12, 2019 | | Microsoft | Windows Server, version 1803 (Server Core Installation) | 17134.648 | [KB4489868](https://patchblox.com/security/data/fix/microsoft/kb4489868.md) | Mar 12, 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.