# KB4339279: July 2018 security update

KB4339279, released July 10, 2018, fixes 1 CVE across 4 products. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/microsoft/kb4339279
- Platform: Microsoft
- Released: Jul 10, 2018
- Priority: High (Closes CVE-2018-8171, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/4339279

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [ASP.NET MVC 5.2 on Microsoft Visual Studio 2013 Update 5](https://patchblox.com/security/data/product/microsoft/asp.net-mvc-5.2-on-microsoft-visual-studio-2013-update-5.md) |  |  |
| [ASP.NET MVC 5.2 on Microsoft Visual Studio 2015 Update 3](https://patchblox.com/security/data/product/microsoft/asp.net-mvc-5.2-on-microsoft-visual-studio-2015-update-3.md) |  |  |
| [ASP.NET Web Pages 3.2.3 on Microsoft Visual Studio 2013 Update 5](https://patchblox.com/security/data/product/microsoft/asp.net-web-pages-3.2.3-on-microsoft-visual-studio-2013-update-5.md) |  |  |
| [ASP.NET Web Pages 3.2.3 on Microsoft Visual Studio 2015 Update 3](https://patchblox.com/security/data/product/microsoft/asp.net-web-pages-3.2.3-on-microsoft-visual-studio-2015-update-3.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2018-8171](https://patchblox.com/security/data/cve/CVE-2018-8171.md) | High | ASP.NET | n/a | 0.1077 |  |

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Data as of 2026-11-07T06:34:28Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo