# CVE-2017-0295: Windows Default Folder Tampering Vulnerability

CVE-2017-0295 is fixed in 6 products on 1 platform, first by KB4022715, released June 13, 2017. 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-2017-0295
- Priority: Urgent
- CVSS: 4.8 (Important)
- EPSS: 0.0124
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation More Likely
- Published: Jun 13, 2017
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2017-0295

## Description

<p>A tampering vulnerability exists in Microsoft Windows that could allow an authenticated attacker to modify the C:\Users\DEFAULT folder structure. An attacker who successfully exploited this vulnerability could potentially modify files and folders that are synchronized the first time when a user logs in locally to the computer.</p> <p>To exploit this vulnerability, an attacker would need to log on to the affected system and tamper with the DEFAULT folder contents. An attacker can only exploit this vulnerability prior to a user logging on locally to the computer. Users who have logged on before the attacker attempts to exploit this vulnerability would not be affected.</p> <p>The security update addresses the vulnerability by correcting permissions on folders inside the DEFAULT folder structure.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Windows 10 Version 1607 for 32-bit Systems | 14393.1358 | [KB4022715](https://patchblox.com/security/data/fix/microsoft/kb4022715.md) | Jun 13, 2017 |
| Microsoft | Windows 10 Version 1607 for x64-based Systems | 14393.1358 | [KB4022715](https://patchblox.com/security/data/fix/microsoft/kb4022715.md) | Jun 13, 2017 |
| Microsoft | Windows 10 Version 1703 for 32-bit Systems |  | [KB4022725](https://patchblox.com/security/data/fix/microsoft/kb4022725.md) | Jun 13, 2017 |
| Microsoft | Windows 10 Version 1703 for x64-based Systems |  | [KB4022725](https://patchblox.com/security/data/fix/microsoft/kb4022725.md) | Jun 13, 2017 |
| Microsoft | Windows Server 2016 | 14393.1358 | [KB4022715](https://patchblox.com/security/data/fix/microsoft/kb4022715.md) | Jun 13, 2017 |
| Microsoft | Windows Server 2016 (Server Core installation) | 14393.1358 | [KB4022715](https://patchblox.com/security/data/fix/microsoft/kb4022715.md) | Jun 13, 2017 |

---

Data as of 2026-11-08T06:59:42Z 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.