# 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 2026-11-08T19:12:23Z 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.