# CVE-2018-8175: WEBDAV Denial of Service Vulnerability

CVE-2018-8175 is fixed in 6 products on 1 platform, first by KB4284819, released June 12, 2018. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-8175
- Priority: Routine
- CVSS: 5.9 (Important)
- EPSS: 0.0796
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Jun 12, 2018
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2018-8175

## Description

<p>A denial of service vulnerability exists when Windows NT WEBDAV Minirdr attempts to query a WEBDAV directory. An attacker who successfully exploited the vulnerability could cause a denial of service.</p> <p>To exploit the vulnerability, an attacker could host a specially crafted website and then convince a user to browse to it, which would cause the victim's system to stop responding. However, an attacker could not force a user to view the attacker-controlled content. Instead, an attacker would have to convince a user to take action. For example, an attacker could trick a user into clicking a link that takes the user to the attacker's WEBDAV directory.</p> <p>The security update addresses the vulnerability by correcting how Windows NT WEBDAV Minirdr attempts to query a WEBDAV directory.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Windows 10 Version 1709 for 32-bit Systems | 16299.492 | [KB4284819](https://patchblox.com/security/data/fix/microsoft/kb4284819.md) | Jun 12, 2018 |
| Microsoft | Windows 10 Version 1709 for x64-based Systems | 16299.492 | [KB4284819](https://patchblox.com/security/data/fix/microsoft/kb4284819.md) | Jun 12, 2018 |
| Microsoft | Windows 10 Version 1803 for 32-bit Systems | 17134.112 | [KB4284835](https://patchblox.com/security/data/fix/microsoft/kb4284835.md) | Jun 12, 2018 |
| Microsoft | Windows 10 Version 1803 for x64-based Systems | 17134.112 | [KB4284835](https://patchblox.com/security/data/fix/microsoft/kb4284835.md) | Jun 12, 2018 |
| Microsoft | Windows Server, version 1709  (Server Core Installation) | 16299.492 | [KB4284819](https://patchblox.com/security/data/fix/microsoft/kb4284819.md) | Jun 12, 2018 |
| Microsoft | Windows Server, version 1803  (Server Core Installation) | 17134.112 | [KB4284835](https://patchblox.com/security/data/fix/microsoft/kb4284835.md) | Jun 12, 2018 |

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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