# CVE-2018-0824: Microsoft COM for Windows Remote Code Execution Vulnerability CVE-2018-0824 is fixed in 31 products on 1 platform, first by KB4103723, released May 8, 2018. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on August 5, 2024. Patch Radar priority: Patch now. - Web page: https://patchblox.com/security/cve/CVE-2018-0824 - Priority: Patch now - CVSS: 7.5 (Important) - EPSS: 0.7304 - CISA KEV: listed Aug 5, 2024, federal due date Aug 26, 2024 - Exploited (vendor report): no - Publicly disclosed: no - Vendor exploitability assessment: Exploitation Less Likely - Published: May 8, 2018 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2018-0824 ## Description

A remote code execution vulnerability exists in "Microsoft COM for Windows" when it fails to properly handle serialized objects.

An attacker who successfully exploited the vulnerability could use a specially crafted file or script to perform actions. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file. In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) that contains a specially crafted file that is designed to exploit the vulnerability. However, an attacker would have no way to force the user to visit the website. Instead, an attacker would have to convince the user to click a link, typically by way of an enticement in an email or Instant Messenger message, and then convince the user to open the specially crafted file.

The security update addresses the vulnerability by correcting how "Microsoft COM for Windows" handles serialized objects.

## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Microsoft | Windows 10 Version 1607 for 32-bit Systems | 14393.2248 | [KB4103723](https://patchblox.com/security/data/fix/microsoft/kb4103723.md) | May 8, 2018 | | Microsoft | Windows 10 Version 1607 for x64-based Systems | 14393.2248 | [KB4103723](https://patchblox.com/security/data/fix/microsoft/kb4103723.md) | May 8, 2018 | | Microsoft | Windows 10 Version 1703 for 32-bit Systems | 15063.1088 | [KB4103731](https://patchblox.com/security/data/fix/microsoft/kb4103731.md) | May 8, 2018 | | Microsoft | Windows 10 Version 1703 for x64-based Systems | 15063.1088 | [KB4103731](https://patchblox.com/security/data/fix/microsoft/kb4103731.md) | May 8, 2018 | | Microsoft | Windows 10 Version 1709 for 32-bit Systems | 16299.431 | [KB4103727](https://patchblox.com/security/data/fix/microsoft/kb4103727.md) | May 8, 2018 | | Microsoft | Windows 10 Version 1709 for x64-based Systems | 16299.431 | [KB4103727](https://patchblox.com/security/data/fix/microsoft/kb4103727.md) | May 8, 2018 | | Microsoft | Windows 10 Version 1803 for 32-bit Systems | 17134.48 | [KB4103721](https://patchblox.com/security/data/fix/microsoft/kb4103721.md) | May 8, 2018 | | Microsoft | Windows 10 Version 1803 for x64-based Systems | 17134.48 | [KB4103721](https://patchblox.com/security/data/fix/microsoft/kb4103721.md) | May 8, 2018 | | Microsoft | Windows 10 for 32-bit Systems | 10240.17861 | [KB4103716](https://patchblox.com/security/data/fix/microsoft/kb4103716.md) | May 8, 2018 | | Microsoft | Windows 10 for x64-based Systems | 10240.17861 | [KB4103716](https://patchblox.com/security/data/fix/microsoft/kb4103716.md) | May 8, 2018 | | Microsoft | Windows 7 for 32-bit Systems Service Pack 1 | | [KB4103718](https://patchblox.com/security/data/fix/microsoft/kb4103718.md) | May 8, 2018 | | Microsoft | Windows 7 for 32-bit Systems Service Pack 1 | | [KB4103712](https://patchblox.com/security/data/fix/microsoft/kb4103712.md) | May 8, 2018 | | Microsoft | Windows 7 for x64-based Systems Service Pack 1 | | [KB4103718](https://patchblox.com/security/data/fix/microsoft/kb4103718.md) | May 8, 2018 | | Microsoft | Windows 7 for x64-based Systems Service Pack 1 | | [KB4103712](https://patchblox.com/security/data/fix/microsoft/kb4103712.md) | May 8, 2018 | | Microsoft | Windows 8.1 for 32-bit systems | | [KB4103725](https://patchblox.com/security/data/fix/microsoft/kb4103725.md) | May 8, 2018 | | Microsoft | Windows 8.1 for 32-bit systems | | [KB4103715](https://patchblox.com/security/data/fix/microsoft/kb4103715.md) | May 8, 2018 | | Microsoft | Windows 8.1 for x64-based systems | | [KB4103725](https://patchblox.com/security/data/fix/microsoft/kb4103725.md) | May 8, 2018 | | Microsoft | Windows 8.1 for x64-based systems | | [KB4103715](https://patchblox.com/security/data/fix/microsoft/kb4103715.md) | May 8, 2018 | | Microsoft | Windows RT 8.1 | | [KB4103725](https://patchblox.com/security/data/fix/microsoft/kb4103725.md) | May 8, 2018 | | Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | | [KB4103718](https://patchblox.com/security/data/fix/microsoft/kb4103718.md) | May 8, 2018 | | Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | | [KB4103712](https://patchblox.com/security/data/fix/microsoft/kb4103712.md) | May 8, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4103718](https://patchblox.com/security/data/fix/microsoft/kb4103718.md) | May 8, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4103712](https://patchblox.com/security/data/fix/microsoft/kb4103712.md) | May 8, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB4103718](https://patchblox.com/security/data/fix/microsoft/kb4103718.md) | May 8, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB4103712](https://patchblox.com/security/data/fix/microsoft/kb4103712.md) | May 8, 2018 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 | | [KB4101477](https://patchblox.com/security/data/fix/microsoft/kb4101477.md) | May 8, 2018 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | | [KB4101477](https://patchblox.com/security/data/fix/microsoft/kb4101477.md) | May 8, 2018 | | Microsoft | Windows Server 2008 for Itanium-Based Systems Service Pack 2 | | [KB4101477](https://patchblox.com/security/data/fix/microsoft/kb4101477.md) | May 8, 2018 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 | | [KB4101477](https://patchblox.com/security/data/fix/microsoft/kb4101477.md) | May 8, 2018 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | | [KB4101477](https://patchblox.com/security/data/fix/microsoft/kb4101477.md) | May 8, 2018 | | Microsoft | Windows Server 2012 | | [KB4103730](https://patchblox.com/security/data/fix/microsoft/kb4103730.md) | May 8, 2018 | | Microsoft | Windows Server 2012 | | [KB4103726](https://patchblox.com/security/data/fix/microsoft/kb4103726.md) | May 8, 2018 | | Microsoft | Windows Server 2012 (Server Core installation) | | [KB4103730](https://patchblox.com/security/data/fix/microsoft/kb4103730.md) | May 8, 2018 | | Microsoft | Windows Server 2012 (Server Core installation) | | [KB4103726](https://patchblox.com/security/data/fix/microsoft/kb4103726.md) | May 8, 2018 | | Microsoft | Windows Server 2012 R2 | | [KB4103725](https://patchblox.com/security/data/fix/microsoft/kb4103725.md) | May 8, 2018 | | Microsoft | Windows Server 2012 R2 | | [KB4103715](https://patchblox.com/security/data/fix/microsoft/kb4103715.md) | May 8, 2018 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4103725](https://patchblox.com/security/data/fix/microsoft/kb4103725.md) | May 8, 2018 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4103715](https://patchblox.com/security/data/fix/microsoft/kb4103715.md) | May 8, 2018 | | Microsoft | Windows Server 2016 | 14393.2248 | [KB4103723](https://patchblox.com/security/data/fix/microsoft/kb4103723.md) | May 8, 2018 | | Microsoft | Windows Server 2016 (Server Core installation) | 14393.2248 | [KB4103723](https://patchblox.com/security/data/fix/microsoft/kb4103723.md) | May 8, 2018 | | Microsoft | Windows Server, version 1709 (Server Core Installation) | 16299.431 | [KB4103727](https://patchblox.com/security/data/fix/microsoft/kb4103727.md) | May 8, 2018 | | Microsoft | Windows Server, version 1803 (Server Core Installation) | 17134.48 | [KB4103721](https://patchblox.com/security/data/fix/microsoft/kb4103721.md) | May 8, 2018 | --- Data as of 2026-11-07T12:40:37Z 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