A remote code execution vulnerability exists when the Office graphics component improperly handles specially crafted embedded fonts. An attacker who successfully exploited this vulnerability could take control of the 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.
There are multiple ways an attacker could exploit this vulnerability. In a web-based attack scenario, an attacker could host a specially crafted website designed to exploit the vulnerability and then convince a user to view the website. An attacker would have no way to force a user to view the attacker-controlled content. Instead, an attacker would have to convince a user to take action, typically by getting the user to click a link in an email or instant message that takes the user to the attacker's website, or by opening an attachment sent through email.
In a file-sharing attack scenario, an attacker could provide a specially crafted document file designed to exploit the vulnerability and then convince a user to open the document file.
Note that where severity is indicated as Critical in the Affected Products table, the Preview Pane is an attack vector.
The security update addresses the vulnerability by correcting how the Windows font library handles embedded fonts.
## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Microsoft | Microsoft Office 2007 Service Pack 3 | | [KB3114893](https://patchblox.com/security/data/fix/microsoft/kb3114893.md) | Aug 9, 2016 | | Microsoft | Microsoft Office 2010 Service Pack 2 (32-bit editions) | | [KB3115121](https://patchblox.com/security/data/fix/microsoft/kb3115121.md) | May 10, 2016 | | Microsoft | Microsoft Office 2010 Service Pack 2 (64-bit editions) | | [KB3115121](https://patchblox.com/security/data/fix/microsoft/kb3115121.md) | May 10, 2016 | | Microsoft | Microsoft Office Compatibility Pack Service Pack 3 | | [KB3115464](https://patchblox.com/security/data/fix/microsoft/kb3115464.md) | May 10, 2016 | | Microsoft | Microsoft Office Web Apps 2010 Service Pack 2 | | [KB3115124](https://patchblox.com/security/data/fix/microsoft/kb3115124.md) | May 10, 2016 | | Microsoft | Microsoft Office Word Viewer | | [KB3115479](https://patchblox.com/security/data/fix/microsoft/kb3115479.md) | Aug 9, 2016 | | Microsoft | Microsoft Office Word Viewer | | [KB3115480](https://patchblox.com/security/data/fix/microsoft/kb3115480.md) | Aug 9, 2016 | | Microsoft | Microsoft Word 2007 Service Pack 3 | | [KB3115465](https://patchblox.com/security/data/fix/microsoft/kb3115465.md) | Aug 9, 2016 | | Microsoft | Microsoft Word 2010 Service Pack 2 (32-bit editions) | | [KB3115123](https://patchblox.com/security/data/fix/microsoft/kb3115123.md) | May 10, 2016 | | Microsoft | Microsoft Word 2010 Service Pack 2 (64-bit editions) | | [KB3115123](https://patchblox.com/security/data/fix/microsoft/kb3115123.md) | May 10, 2016 | | Microsoft | Word Automation Services on Microsoft SharePoint Server 2010 Service Pack 2 | | [KB3115117](https://patchblox.com/security/data/fix/microsoft/kb3115117.md) | May 10, 2016 | --- Data as of 2026-11-07T18:46:35Z 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.