# CVE-2018-8307: WordPad Security Feature Bypass Vulnerability CVE-2018-8307 is fixed in 31 products on 1 platform, first by KB4338814, released July 10, 2018. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2018-8307 - Priority: Routine - CVSS: 5.3 (Important) - EPSS: 0.0382 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Vendor exploitability assessment: Exploitation Less Likely - Published: Jul 19, 2018 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2018-8307 ## Description

A security feature bypass vulnerability exists when Microsoft WordPad improperly handles embedded OLE objects. An attacker who successfully exploited the vulnerability could bypass content blocking.

In a file-sharing attack scenario, an attacker could provide a specially crafted document file designed to exploit the vulnerability, and then convince a user to open the document file.

The security update addresses the vulnerability by correcting how Microsoft WordPad handles input.

## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Microsoft | Windows 10 Version 1607 for 32-bit Systems | 14393.2368 | [KB4345418](https://patchblox.com/security/data/fix/microsoft/kb4345418.md) | Jul 16, 2018 | | Microsoft | Windows 10 Version 1607 for 32-bit Systems | 14393.2363 | [KB4338814](https://patchblox.com/security/data/fix/microsoft/kb4338814.md) | Jul 10, 2018 | | Microsoft | Windows 10 Version 1607 for x64-based Systems | 14393.2368 | [KB4345418](https://patchblox.com/security/data/fix/microsoft/kb4345418.md) | Jul 16, 2018 | | Microsoft | Windows 10 Version 1607 for x64-based Systems | 14393.2363 | [KB4338814](https://patchblox.com/security/data/fix/microsoft/kb4338814.md) | Jul 10, 2018 | | Microsoft | Windows 10 Version 1703 for 32-bit Systems | 15063.1209 | [KB4345419](https://patchblox.com/security/data/fix/microsoft/kb4345419.md) | Jul 16, 2018 | | Microsoft | Windows 10 Version 1703 for 32-bit Systems | 15063.1206 | [KB4338826](https://patchblox.com/security/data/fix/microsoft/kb4338826.md) | Jul 10, 2018 | | Microsoft | Windows 10 Version 1703 for x64-based Systems | 15063.1209 | [KB4345419](https://patchblox.com/security/data/fix/microsoft/kb4345419.md) | Jul 16, 2018 | | Microsoft | Windows 10 Version 1703 for x64-based Systems | 15063.1206 | [KB4338826](https://patchblox.com/security/data/fix/microsoft/kb4338826.md) | Jul 10, 2018 | | Microsoft | Windows 10 Version 1709 for 32-bit Systems | 16299.551 | [KB4345420](https://patchblox.com/security/data/fix/microsoft/kb4345420.md) | Jul 16, 2018 | | Microsoft | Windows 10 Version 1709 for 32-bit Systems | 16299.547 | [KB4338825](https://patchblox.com/security/data/fix/microsoft/kb4338825.md) | Jul 10, 2018 | | Microsoft | Windows 10 Version 1709 for x64-based Systems | 16299.551 | [KB4345420](https://patchblox.com/security/data/fix/microsoft/kb4345420.md) | Jul 16, 2018 | | Microsoft | Windows 10 Version 1709 for x64-based Systems | 16299.547 | [KB4338825](https://patchblox.com/security/data/fix/microsoft/kb4338825.md) | Jul 10, 2018 | | Microsoft | Windows 10 Version 1803 for 32-bit Systems | 17134.167 | [KB4345421](https://patchblox.com/security/data/fix/microsoft/kb4345421.md) | Jul 16, 2018 | | Microsoft | Windows 10 Version 1803 for 32-bit Systems | 17134.165 | [KB4338819](https://patchblox.com/security/data/fix/microsoft/kb4338819.md) | Jul 10, 2018 | | Microsoft | Windows 10 Version 1803 for x64-based Systems | 17134.167 | [KB4345421](https://patchblox.com/security/data/fix/microsoft/kb4345421.md) | Jul 16, 2018 | | Microsoft | Windows 10 Version 1803 for x64-based Systems | 17134.165 | [KB4338819](https://patchblox.com/security/data/fix/microsoft/kb4338819.md) | Jul 10, 2018 | | Microsoft | Windows 10 for 32-bit Systems | 10240.17918 | [KB4345455](https://patchblox.com/security/data/fix/microsoft/kb4345455.md) | Jul 16, 2018 | | Microsoft | Windows 10 for 32-bit Systems | 10240.17914 | [KB4338829](https://patchblox.com/security/data/fix/microsoft/kb4338829.md) | Jul 10, 2018 | | Microsoft | Windows 10 for x64-based Systems | 10240.17918 | [KB4345455](https://patchblox.com/security/data/fix/microsoft/kb4345455.md) | Jul 16, 2018 | | Microsoft | Windows 10 for x64-based Systems | 10240.17914 | [KB4338829](https://patchblox.com/security/data/fix/microsoft/kb4338829.md) | Jul 10, 2018 | | Microsoft | Windows 7 for 32-bit Systems Service Pack 1 | | [KB4338823](https://patchblox.com/security/data/fix/microsoft/kb4338823.md) | Jul 19, 2018 | | Microsoft | Windows 7 for 32-bit Systems Service Pack 1 | | [KB4338818](https://patchblox.com/security/data/fix/microsoft/kb4338818.md) | Jul 10, 2018 | | Microsoft | Windows 7 for 32-bit Systems Service Pack 1 | | [KB4338821](https://patchblox.com/security/data/fix/microsoft/kb4338821.md) | Jul 10, 2018 | | Microsoft | Windows 7 for 32-bit Systems Service Pack 1 | | [KB4345459](https://patchblox.com/security/data/fix/microsoft/kb4345459.md) | Jul 10, 2018 | | Microsoft | Windows 7 for x64-based Systems Service Pack 1 | | [KB4338823](https://patchblox.com/security/data/fix/microsoft/kb4338823.md) | Jul 19, 2018 | | Microsoft | Windows 7 for x64-based Systems Service Pack 1 | | [KB4338818](https://patchblox.com/security/data/fix/microsoft/kb4338818.md) | Jul 10, 2018 | | Microsoft | Windows 7 for x64-based Systems Service Pack 1 | | [KB4338821](https://patchblox.com/security/data/fix/microsoft/kb4338821.md) | Jul 10, 2018 | | Microsoft | Windows 7 for x64-based Systems Service Pack 1 | | [KB4345459](https://patchblox.com/security/data/fix/microsoft/kb4345459.md) | Jul 10, 2018 | | Microsoft | Windows 8.1 for 32-bit systems | | [KB4338824](https://patchblox.com/security/data/fix/microsoft/kb4338824.md) | Jul 19, 2018 | | Microsoft | Windows 8.1 for 32-bit systems | | [KB4338815](https://patchblox.com/security/data/fix/microsoft/kb4338815.md) | Jul 10, 2018 | | Microsoft | Windows 8.1 for 32-bit systems | | [KB4338831](https://patchblox.com/security/data/fix/microsoft/kb4338831.md) | Jul 10, 2018 | | Microsoft | Windows 8.1 for 32-bit systems | | [KB4345424](https://patchblox.com/security/data/fix/microsoft/kb4345424.md) | Jul 10, 2018 | | Microsoft | Windows 8.1 for x64-based systems | | [KB4338824](https://patchblox.com/security/data/fix/microsoft/kb4338824.md) | Jul 19, 2018 | | Microsoft | Windows 8.1 for x64-based systems | | [KB4338815](https://patchblox.com/security/data/fix/microsoft/kb4338815.md) | Jul 10, 2018 | | Microsoft | Windows 8.1 for x64-based systems | | [KB4338831](https://patchblox.com/security/data/fix/microsoft/kb4338831.md) | Jul 10, 2018 | | Microsoft | Windows 8.1 for x64-based systems | | [KB4345424](https://patchblox.com/security/data/fix/microsoft/kb4345424.md) | Jul 10, 2018 | | Microsoft | Windows RT 8.1 | | [KB4338815](https://patchblox.com/security/data/fix/microsoft/kb4338815.md) | Jul 10, 2018 | | Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | | [KB4338823](https://patchblox.com/security/data/fix/microsoft/kb4338823.md) | Jul 19, 2018 | | Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | | [KB4338818](https://patchblox.com/security/data/fix/microsoft/kb4338818.md) | Jul 10, 2018 | | Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | | [KB4338821](https://patchblox.com/security/data/fix/microsoft/kb4338821.md) | Jul 10, 2018 | | Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | | [KB4345459](https://patchblox.com/security/data/fix/microsoft/kb4345459.md) | Jul 10, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4338823](https://patchblox.com/security/data/fix/microsoft/kb4338823.md) | Jul 19, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4338818](https://patchblox.com/security/data/fix/microsoft/kb4338818.md) | Jul 10, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4338821](https://patchblox.com/security/data/fix/microsoft/kb4338821.md) | Jul 10, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4345459](https://patchblox.com/security/data/fix/microsoft/kb4345459.md) | Jul 10, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB4338823](https://patchblox.com/security/data/fix/microsoft/kb4338823.md) | Jul 19, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB4338818](https://patchblox.com/security/data/fix/microsoft/kb4338818.md) | Jul 10, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB4338821](https://patchblox.com/security/data/fix/microsoft/kb4338821.md) | Jul 10, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB4345459](https://patchblox.com/security/data/fix/microsoft/kb4345459.md) | Jul 10, 2018 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 | | [KB4339291](https://patchblox.com/security/data/fix/microsoft/kb4339291.md) | Jul 19, 2018 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | | [KB4339291](https://patchblox.com/security/data/fix/microsoft/kb4339291.md) | Jul 19, 2018 | | Microsoft | Windows Server 2008 for Itanium-Based Systems Service Pack 2 | | [KB4339291](https://patchblox.com/security/data/fix/microsoft/kb4339291.md) | Jul 19, 2018 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 | | [KB4339291](https://patchblox.com/security/data/fix/microsoft/kb4339291.md) | Jul 19, 2018 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | | [KB4339291](https://patchblox.com/security/data/fix/microsoft/kb4339291.md) | Jul 19, 2018 | | Microsoft | Windows Server 2012 | | [KB4338820](https://patchblox.com/security/data/fix/microsoft/kb4338820.md) | Jul 19, 2018 | | Microsoft | Windows Server 2012 | | [KB4338830](https://patchblox.com/security/data/fix/microsoft/kb4338830.md) | Jul 10, 2018 | | Microsoft | Windows Server 2012 | | [KB4338816](https://patchblox.com/security/data/fix/microsoft/kb4338816.md) | Jul 10, 2018 | | Microsoft | Windows Server 2012 | | [KB4345425](https://patchblox.com/security/data/fix/microsoft/kb4345425.md) | Jul 10, 2018 | | Microsoft | Windows Server 2012 (Server Core installation) | | [KB4338820](https://patchblox.com/security/data/fix/microsoft/kb4338820.md) | Jul 19, 2018 | | Microsoft | Windows Server 2012 (Server Core installation) | | [KB4338830](https://patchblox.com/security/data/fix/microsoft/kb4338830.md) | Jul 10, 2018 | | Microsoft | Windows Server 2012 (Server Core installation) | | [KB4338816](https://patchblox.com/security/data/fix/microsoft/kb4338816.md) | Jul 10, 2018 | | Microsoft | Windows Server 2012 (Server Core installation) | | [KB4345425](https://patchblox.com/security/data/fix/microsoft/kb4345425.md) | Jul 10, 2018 | | Microsoft | Windows Server 2012 R2 | | [KB4338824](https://patchblox.com/security/data/fix/microsoft/kb4338824.md) | Jul 19, 2018 | | Microsoft | Windows Server 2012 R2 | | [KB4338815](https://patchblox.com/security/data/fix/microsoft/kb4338815.md) | Jul 10, 2018 | | Microsoft | Windows Server 2012 R2 | | [KB4338831](https://patchblox.com/security/data/fix/microsoft/kb4338831.md) | Jul 10, 2018 | | Microsoft | Windows Server 2012 R2 | | [KB4345424](https://patchblox.com/security/data/fix/microsoft/kb4345424.md) | Jul 10, 2018 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4338824](https://patchblox.com/security/data/fix/microsoft/kb4338824.md) | Jul 19, 2018 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4338815](https://patchblox.com/security/data/fix/microsoft/kb4338815.md) | Jul 10, 2018 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4338831](https://patchblox.com/security/data/fix/microsoft/kb4338831.md) | Jul 10, 2018 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4345424](https://patchblox.com/security/data/fix/microsoft/kb4345424.md) | Jul 10, 2018 | | Microsoft | Windows Server 2016 | 14393.2368 | [KB4345418](https://patchblox.com/security/data/fix/microsoft/kb4345418.md) | Jul 16, 2018 | | Microsoft | Windows Server 2016 | 14393.2363 | [KB4338814](https://patchblox.com/security/data/fix/microsoft/kb4338814.md) | Jul 10, 2018 | | Microsoft | Windows Server 2016 (Server Core installation) | 14393.2368 | [KB4345418](https://patchblox.com/security/data/fix/microsoft/kb4345418.md) | Jul 16, 2018 | | Microsoft | Windows Server 2016 (Server Core installation) | 14393.2363 | [KB4338814](https://patchblox.com/security/data/fix/microsoft/kb4338814.md) | Jul 10, 2018 | | Microsoft | Windows Server, version 1709 (Server Core Installation) | 16299.551 | [KB4345420](https://patchblox.com/security/data/fix/microsoft/kb4345420.md) | Jul 16, 2018 | | Microsoft | Windows Server, version 1709 (Server Core Installation) | 16299.547 | [KB4338825](https://patchblox.com/security/data/fix/microsoft/kb4338825.md) | Jul 10, 2018 | | Microsoft | Windows Server, version 1803 (Server Core Installation) | 17134.167 | [KB4345421](https://patchblox.com/security/data/fix/microsoft/kb4345421.md) | Jul 16, 2018 | | Microsoft | Windows Server, version 1803 (Server Core Installation) | 17134.165 | [KB4338819](https://patchblox.com/security/data/fix/microsoft/kb4338819.md) | Jul 10, 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