# CVE-2018-8308: Windows Kernel Elevation of Privilege Vulnerability CVE-2018-8308 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-2018-8308 - Priority: Routine - CVSS: 6.6 (Important) - EPSS: 0.0394 - 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-2018-8308 ## Description

An elevation of privilege vulnerability exists when the Windows kernel fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application to take control of an affected system.

The update addresses the vulnerability by correcting how the Windows kernel handles objects in memory.

## 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 | | [KB4345397](https://patchblox.com/security/data/fix/microsoft/kb4345397.md) | Jul 19, 2018 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 | | [KB4295656](https://patchblox.com/security/data/fix/microsoft/kb4295656.md) | Jul 19, 2018 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | | [KB4345397](https://patchblox.com/security/data/fix/microsoft/kb4345397.md) | Jul 19, 2018 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | | [KB4295656](https://patchblox.com/security/data/fix/microsoft/kb4295656.md) | Jul 19, 2018 | | Microsoft | Windows Server 2008 for Itanium-Based Systems Service Pack 2 | | [KB4345397](https://patchblox.com/security/data/fix/microsoft/kb4345397.md) | Jul 19, 2018 | | Microsoft | Windows Server 2008 for Itanium-Based Systems Service Pack 2 | | [KB4295656](https://patchblox.com/security/data/fix/microsoft/kb4295656.md) | Jul 19, 2018 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 | | [KB4345397](https://patchblox.com/security/data/fix/microsoft/kb4345397.md) | Jul 19, 2018 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 | | [KB4295656](https://patchblox.com/security/data/fix/microsoft/kb4295656.md) | Jul 19, 2018 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | | [KB4345397](https://patchblox.com/security/data/fix/microsoft/kb4345397.md) | Jul 19, 2018 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | | [KB4295656](https://patchblox.com/security/data/fix/microsoft/kb4295656.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