# CVE-2016-3235: Microsoft Office Remote Code Execution Vulnerability

CVE-2016-3235 is fixed in 10 products on 1 platform, first by KB3114740, released June 14, 2016. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021. Patch Radar priority: Patch now.

- Web page: https://patchblox.com/security/cve/CVE-2016-3235
- Priority: Patch now
- CVSS: n/a (Important)
- EPSS: 0.4331
- CISA KEV: listed Nov 3, 2021, federal due date May 3, 2022
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Jun 14, 2016
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2016-3235

## Description

<p>A remote code execution vulnerability exists when Microsoft Office improperly validates input before loading dynamic link library (DLL) files. An attacker who successfully exploited this vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.</p> <p>To exploit the vulnerability, an attacker must first convince a user to open a specially crafted Office document.</p> <p>The updates address the vulnerability by correcting how Office validates input before loading DLL files.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Microsoft Visio 2007 Service Pack 3 |  | [KB3114740](https://patchblox.com/security/data/fix/microsoft/kb3114740.md) | Jun 14, 2016 |
| Microsoft | Microsoft Visio 2010 Service Pack 2 (32-bit editions) |  | [KB3114872](https://patchblox.com/security/data/fix/microsoft/kb3114872.md) | Jun 14, 2016 |
| Microsoft | Microsoft Visio 2010 Service Pack 2 (64-bit editions) |  | [KB3114872](https://patchblox.com/security/data/fix/microsoft/kb3114872.md) | Jun 14, 2016 |
| Microsoft | Microsoft Visio 2013 Service Pack 1 (32-bit editions) |  | [KB3115020](https://patchblox.com/security/data/fix/microsoft/kb3115020.md) | Jun 14, 2016 |
| Microsoft | Microsoft Visio 2013 Service Pack 1 (64-bit editions) |  | [KB3115020](https://patchblox.com/security/data/fix/microsoft/kb3115020.md) | Jun 14, 2016 |
| Microsoft | Microsoft Visio 2016 (32-bit edition) |  | [KB3115041](https://patchblox.com/security/data/fix/microsoft/kb3115041.md) | Jun 14, 2016 |
| Microsoft | Microsoft Visio 2016 (64-bit edition) |  | [KB3115041](https://patchblox.com/security/data/fix/microsoft/kb3115041.md) | Jun 14, 2016 |
| Microsoft | Microsoft Visio Viewer 2007 Service Pack 3 |  | [KB2596915](https://patchblox.com/security/data/fix/microsoft/kb2596915.md) | Jun 14, 2016 |
| Microsoft | Microsoft Visio Viewer 2010 (32-bit Edition) |  | [KB2999465](https://patchblox.com/security/data/fix/microsoft/kb2999465.md) | Jun 14, 2016 |
| Microsoft | Microsoft Visio Viewer 2010 (64-bit Edition) |  | [KB2999465](https://patchblox.com/security/data/fix/microsoft/kb2999465.md) | Jun 14, 2016 |

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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