# CVE-2016-3279: Microsoft Office Security Feature Bypass Vulnerability CVE-2016-3279 is fixed in 24 products on 1 platform, first by KB3115322, released July 12, 2016. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2016-3279 - Priority: High - CVSS: n/a (Important) - EPSS: 0.1642 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Vendor exploitability assessment: Exploitation Less Likely - Published: Jul 12, 2016 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2016-3279 ## Description

A security feature bypass vulnerability exists in Microsoft Office software when it improperly handles the parsing of file formats. The security feature bypass by itself does not allow arbitrary code execution. However, to successfully exploit the vulnerability, an attacker would have to use it in conjunction with another vulnerability, such as a remote code execution vulnerability, to take advantage of the security feature bypass vulnerability and run arbitrary code.

To exploit the vulnerability, an attacker would have to convince a user to open a specially crafted file with an affected version of Microsoft Office software.

The security update addresses the vulnerability by correcting how Microsoft Office handles the parsing of file formats.

## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Microsoft | Microsoft Excel 2010 Service Pack 2 (32-bit editions) | | [KB3115322](https://patchblox.com/security/data/fix/microsoft/kb3115322.md) | Jul 12, 2016 | | Microsoft | Microsoft Excel 2010 Service Pack 2 (64-bit editions) | | [KB3115322](https://patchblox.com/security/data/fix/microsoft/kb3115322.md) | Jul 12, 2016 | | Microsoft | Microsoft Excel 2013 RT Service Pack 1 | | [KB3115262](https://patchblox.com/security/data/fix/microsoft/kb3115262.md) | Jul 12, 2016 | | Microsoft | Microsoft Excel 2013 Service Pack 1 (32-bit editions) | | [KB3115262](https://patchblox.com/security/data/fix/microsoft/kb3115262.md) | Jul 12, 2016 | | Microsoft | Microsoft Excel 2013 Service Pack 1 (64-bit editions) | | [KB3115262](https://patchblox.com/security/data/fix/microsoft/kb3115262.md) | Jul 12, 2016 | | Microsoft | Microsoft Excel 2016 (32-bit edition) | | [KB3115272](https://patchblox.com/security/data/fix/microsoft/kb3115272.md) | Jul 12, 2016 | | Microsoft | Microsoft Excel 2016 (64-bit edition) | | [KB3115272](https://patchblox.com/security/data/fix/microsoft/kb3115272.md) | Jul 12, 2016 | | Microsoft | Microsoft Office 2010 Service Pack 2 (32-bit editions) | | [KB3115315](https://patchblox.com/security/data/fix/microsoft/kb3115315.md) | Jul 12, 2016 | | Microsoft | Microsoft Office 2010 Service Pack 2 (64-bit editions) | | [KB3115315](https://patchblox.com/security/data/fix/microsoft/kb3115315.md) | Jul 12, 2016 | | Microsoft | Microsoft Office Web Apps 2010 Service Pack 2 | | [KB3115318](https://patchblox.com/security/data/fix/microsoft/kb3115318.md) | Jul 12, 2016 | | Microsoft | Microsoft Office Web Apps 2013 Service Pack 1 | | [KB3115289](https://patchblox.com/security/data/fix/microsoft/kb3115289.md) | Jul 12, 2016 | | Microsoft | Microsoft PowerPoint 2010 Service Pack 2 (32-bit editions) | | [KB3115118](https://patchblox.com/security/data/fix/microsoft/kb3115118.md) | Jul 12, 2016 | | Microsoft | Microsoft PowerPoint 2010 Service Pack 2 (64-bit editions) | | [KB3115118](https://patchblox.com/security/data/fix/microsoft/kb3115118.md) | Jul 12, 2016 | | Microsoft | Microsoft PowerPoint 2013 RT Service Pack 1 | | [KB3115254](https://patchblox.com/security/data/fix/microsoft/kb3115254.md) | Jul 12, 2016 | | Microsoft | Microsoft PowerPoint 2013 Service Pack 1 (32-bit editions) | | [KB3115254](https://patchblox.com/security/data/fix/microsoft/kb3115254.md) | Jul 12, 2016 | | Microsoft | Microsoft PowerPoint 2013 Service Pack 1 (64-bit editions) | | [KB3115254](https://patchblox.com/security/data/fix/microsoft/kb3115254.md) | Jul 12, 2016 | | Microsoft | Microsoft SharePoint Server 2010 Service Pack 2 on Word Automation Services | | [KB3115312](https://patchblox.com/security/data/fix/microsoft/kb3115312.md) | Jul 12, 2016 | | Microsoft | Microsoft Word 2010 Service Pack 2 (32-bit editions) | | [KB3115317](https://patchblox.com/security/data/fix/microsoft/kb3115317.md) | Jul 12, 2016 | | Microsoft | Microsoft Word 2010 Service Pack 2 (64-bit editions) | | [KB3115317](https://patchblox.com/security/data/fix/microsoft/kb3115317.md) | Jul 12, 2016 | | Microsoft | Microsoft Word 2013 RT Service Pack 1 | | [KB3115292](https://patchblox.com/security/data/fix/microsoft/kb3115292.md) | Jul 12, 2016 | | Microsoft | Microsoft Word 2013 Service Pack 1 (32-bit editions) | | [KB3115292](https://patchblox.com/security/data/fix/microsoft/kb3115292.md) | Jul 12, 2016 | | Microsoft | Microsoft Word 2013 Service Pack 1 (64-bit editions) | | [KB3115292](https://patchblox.com/security/data/fix/microsoft/kb3115292.md) | Jul 12, 2016 | | Microsoft | Microsoft Word 2016 (32-bit edition) | | [KB3115301](https://patchblox.com/security/data/fix/microsoft/kb3115301.md) | Jul 12, 2016 | | Microsoft | Microsoft Word 2016 (64-bit edition) | | [KB3115301](https://patchblox.com/security/data/fix/microsoft/kb3115301.md) | Jul 12, 2016 | --- 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