# CVE-2018-8476: Windows Deployment Services TFTP Server Remote Code Execution Vulnerability CVE-2018-8476 is fixed in 17 products on 1 platform, first by KB4467691, released November 13, 2018. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent. - Web page: https://patchblox.com/security/cve/CVE-2018-8476 - Priority: Urgent - CVSS: 8.1 (Critical) - EPSS: 0.6483 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Vendor exploitability assessment: Exploitation More Likely - Published: Nov 13, 2018 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2018-8476 ## Description

A remote code execution vulnerability exists in the way that Windows Deployment Services TFTP Server handles objects in memory.

An attacker who successfully exploited the vulnerability could execute arbitrary code with elevated permissions on a target system.

To exploit the vulnerability, an attacker could create a specially crafted request, causing Windows to execute arbitrary code with elevated permissions.

The security update addresses the vulnerability by correcting how Windows Deployment Services TFTP Server handles objects in memory.

## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | | [KB4467107](https://patchblox.com/security/data/fix/microsoft/kb4467107.md) | Nov 13, 2018 | | Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | | [KB4467106](https://patchblox.com/security/data/fix/microsoft/kb4467106.md) | Nov 13, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4467107](https://patchblox.com/security/data/fix/microsoft/kb4467107.md) | Nov 13, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4467106](https://patchblox.com/security/data/fix/microsoft/kb4467106.md) | Nov 13, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB4467107](https://patchblox.com/security/data/fix/microsoft/kb4467107.md) | Nov 13, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB4467106](https://patchblox.com/security/data/fix/microsoft/kb4467106.md) | Nov 13, 2018 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 | | [KB4467706](https://patchblox.com/security/data/fix/microsoft/kb4467706.md) | Nov 13, 2018 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 | | [KB4467700](https://patchblox.com/security/data/fix/microsoft/kb4467700.md) | Nov 13, 2018 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | | [KB4467706](https://patchblox.com/security/data/fix/microsoft/kb4467706.md) | Nov 13, 2018 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | | [KB4467700](https://patchblox.com/security/data/fix/microsoft/kb4467700.md) | Nov 13, 2018 | | Microsoft | Windows Server 2008 for Itanium-Based Systems Service Pack 2 | | [KB4467706](https://patchblox.com/security/data/fix/microsoft/kb4467706.md) | Nov 13, 2018 | | Microsoft | Windows Server 2008 for Itanium-Based Systems Service Pack 2 | | [KB4467700](https://patchblox.com/security/data/fix/microsoft/kb4467700.md) | Nov 13, 2018 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 | | [KB4467706](https://patchblox.com/security/data/fix/microsoft/kb4467706.md) | Nov 13, 2018 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 | | [KB4467700](https://patchblox.com/security/data/fix/microsoft/kb4467700.md) | Nov 13, 2018 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | | [KB4467706](https://patchblox.com/security/data/fix/microsoft/kb4467706.md) | Nov 13, 2018 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | | [KB4467700](https://patchblox.com/security/data/fix/microsoft/kb4467700.md) | Nov 13, 2018 | | Microsoft | Windows Server 2012 | | [KB4467701](https://patchblox.com/security/data/fix/microsoft/kb4467701.md) | Nov 13, 2018 | | Microsoft | Windows Server 2012 | | [KB4467678](https://patchblox.com/security/data/fix/microsoft/kb4467678.md) | Nov 13, 2018 | | Microsoft | Windows Server 2012 (Server Core installation) | | [KB4467701](https://patchblox.com/security/data/fix/microsoft/kb4467701.md) | Nov 13, 2018 | | Microsoft | Windows Server 2012 (Server Core installation) | | [KB4467678](https://patchblox.com/security/data/fix/microsoft/kb4467678.md) | Nov 13, 2018 | | Microsoft | Windows Server 2012 R2 | | [KB4467703](https://patchblox.com/security/data/fix/microsoft/kb4467703.md) | Nov 13, 2018 | | Microsoft | Windows Server 2012 R2 | | [KB4467697](https://patchblox.com/security/data/fix/microsoft/kb4467697.md) | Nov 13, 2018 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4467703](https://patchblox.com/security/data/fix/microsoft/kb4467703.md) | Nov 13, 2018 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4467697](https://patchblox.com/security/data/fix/microsoft/kb4467697.md) | Nov 13, 2018 | | Microsoft | Windows Server 2016 | 14393.2608 | [KB4467691](https://patchblox.com/security/data/fix/microsoft/kb4467691.md) | Nov 13, 2018 | | Microsoft | Windows Server 2016 (Server Core installation) | 14393.2608 | [KB4467691](https://patchblox.com/security/data/fix/microsoft/kb4467691.md) | Nov 13, 2018 | | Microsoft | Windows Server 2019 | 17763.134 | [KB4467708](https://patchblox.com/security/data/fix/microsoft/kb4467708.md) | Nov 13, 2018 | | Microsoft | Windows Server 2019 (Server Core installation) | 17763.134 | [KB4467708](https://patchblox.com/security/data/fix/microsoft/kb4467708.md) | Nov 13, 2018 | | Microsoft | Windows Server, version 1803 (Server Core Installation) | 17134.407 | [KB4467702](https://patchblox.com/security/data/fix/microsoft/kb4467702.md) | Nov 13, 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