# CVE-2017-0104: iSNS Server Memory Corruption Vulnerability

CVE-2017-0104 is fixed in 11 products on 1 platform, first by KB4013429, released March 14, 2017. It is not reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2017-0104
- Priority: Urgent
- CVSS: 8.1 (Critical)
- EPSS: 0.1382
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Unlikely
- Published: Mar 14, 2017
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2017-0104

## Description

<p>A remote code execution vulnerability exists in Windows when the iSNS Server service fails to properly validate input from the client, leading to an integer overflow. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the SYSTEM account.</p> <p>An attacker could exploit the vulnerability by creating a specially crafted application to connect to the iSNS Server and then issue malicious requests to it.</p> <p>The update addresses the vulnerability by modifying how the iSNS Server service parses requests.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 |  | [KB4012215](https://patchblox.com/security/data/fix/microsoft/kb4012215.md) | Mar 14, 2017 |
| Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 |  | [KB4012212](https://patchblox.com/security/data/fix/microsoft/kb4012212.md) | Mar 14, 2017 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 |  | [KB4012215](https://patchblox.com/security/data/fix/microsoft/kb4012215.md) | Mar 14, 2017 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 |  | [KB4012212](https://patchblox.com/security/data/fix/microsoft/kb4012212.md) | Mar 14, 2017 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) |  | [KB4012215](https://patchblox.com/security/data/fix/microsoft/kb4012215.md) | Mar 14, 2017 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) |  | [KB4012212](https://patchblox.com/security/data/fix/microsoft/kb4012212.md) | Mar 14, 2017 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 |  | [KB4012021](https://patchblox.com/security/data/fix/microsoft/kb4012021.md) | Mar 14, 2017 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 |  | [KB4012021](https://patchblox.com/security/data/fix/microsoft/kb4012021.md) | Mar 14, 2017 |
| Microsoft | Windows Server 2012 |  | [KB4012217](https://patchblox.com/security/data/fix/microsoft/kb4012217.md) | Mar 14, 2017 |
| Microsoft | Windows Server 2012 |  | [KB4012214](https://patchblox.com/security/data/fix/microsoft/kb4012214.md) | Mar 14, 2017 |
| Microsoft | Windows Server 2012 (Server Core installation) |  | [KB4012217](https://patchblox.com/security/data/fix/microsoft/kb4012217.md) | Mar 14, 2017 |
| Microsoft | Windows Server 2012 (Server Core installation) |  | [KB4012214](https://patchblox.com/security/data/fix/microsoft/kb4012214.md) | Mar 14, 2017 |
| Microsoft | Windows Server 2012 R2 |  | [KB4012213](https://patchblox.com/security/data/fix/microsoft/kb4012213.md) | Mar 14, 2017 |
| Microsoft | Windows Server 2012 R2 |  | [KB4012216](https://patchblox.com/security/data/fix/microsoft/kb4012216.md) | Mar 14, 2017 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) |  | [KB4012213](https://patchblox.com/security/data/fix/microsoft/kb4012213.md) | Mar 14, 2017 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) |  | [KB4012216](https://patchblox.com/security/data/fix/microsoft/kb4012216.md) | Mar 14, 2017 |
| Microsoft | Windows Server 2016 | 14393.953 | [KB4013429](https://patchblox.com/security/data/fix/microsoft/kb4013429.md) | Mar 14, 2017 |
| Microsoft | Windows Server 2016 (Server Core installation) | 14393.953 | [KB4013429](https://patchblox.com/security/data/fix/microsoft/kb4013429.md) | Mar 14, 2017 |

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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

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