# CVE-2018-0793: Microsoft Office Remote Code Execution Vulnerability

CVE-2018-0793 is fixed in 11 products on 1 platform, first by KB4011607, released January 9, 2018. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2018-0793
- Priority: High
- CVSS: n/a (Important)
- EPSS: 0.2057
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Jan 10, 2018
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2018-0793

## Description

<p>A remote code execution vulnerability exists in the way that Microsoft Offiice parses specially crafted email messages. An attacker who successfully exploited the 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.</p> <p>Exploitation of this vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Offiice. In an email attack scenario, an attacker could exploit the vulnerability by sending a specially crafted file to the user and then convincing the user to open the file.</p> <p>The security update addresses the vulnerability by correcting the way that Microsoft Offiice parses specially crafted email messages.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Microsoft Office 2010 Service Pack 2 (32-bit editions) |  | [KB4011658](https://patchblox.com/security/data/fix/microsoft/kb4011658.md) | Jan 10, 2018 |
| Microsoft | Microsoft Office 2010 Service Pack 2 (64-bit editions) |  | [KB4011658](https://patchblox.com/security/data/fix/microsoft/kb4011658.md) | Jan 10, 2018 |
| Microsoft | Microsoft Office Compatibility Pack Service Pack 3 |  | [KB4011607](https://patchblox.com/security/data/fix/microsoft/kb4011607.md) | Jan 9, 2018 |
| Microsoft | Microsoft Word 2007 Service Pack 3 |  | [KB4011657](https://patchblox.com/security/data/fix/microsoft/kb4011657.md) | Jan 9, 2018 |
| Microsoft | Microsoft Word 2010 Service Pack 2 (32-bit editions) |  | [KB4011659](https://patchblox.com/security/data/fix/microsoft/kb4011659.md) | Jan 9, 2018 |
| Microsoft | Microsoft Word 2010 Service Pack 2 (64-bit editions) |  | [KB4011659](https://patchblox.com/security/data/fix/microsoft/kb4011659.md) | Jan 9, 2018 |
| Microsoft | Microsoft Word 2013 RT Service Pack 1 |  | [KB4011651](https://patchblox.com/security/data/fix/microsoft/kb4011651.md) | Jan 9, 2018 |
| Microsoft | Microsoft Word 2013 Service Pack 1 (32-bit editions) |  | [KB4011651](https://patchblox.com/security/data/fix/microsoft/kb4011651.md) | Jan 9, 2018 |
| Microsoft | Microsoft Word 2013 Service Pack 1 (64-bit editions) |  | [KB4011651](https://patchblox.com/security/data/fix/microsoft/kb4011651.md) | Jan 9, 2018 |
| Microsoft | Microsoft Word 2016 (32-bit edition) |  | [KB4011643](https://patchblox.com/security/data/fix/microsoft/kb4011643.md) | Jan 9, 2018 |
| Microsoft | Microsoft Word 2016 (64-bit edition) |  | [KB4011643](https://patchblox.com/security/data/fix/microsoft/kb4011643.md) | Jan 9, 2018 |

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Data as of 2026-11-07T12:40:37Z 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