# CVE-2018-0853: Microsoft Office Information Disclosure Vulnerability

CVE-2018-0853 is fixed in 7 products on 1 platform, first by KB3114874, released February 13, 2018. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2018-0853
- Priority: High
- CVSS: n/a (Important)
- EPSS: 0.1182
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Feb 13, 2018
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2018-0853

## Description

<p>An information disclosure vulnerability exists when Microsoft Office software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory. An attacker who successfully exploited the vulnerability could view out of bound memory.</p> <p>Exploitation of the vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Office software.</p> <p>The security update addresses the vulnerability by properly initializing the affected variable.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Microsoft Office 2010 Service Pack 2 (32-bit editions) |  | [KB3114874](https://patchblox.com/security/data/fix/microsoft/kb3114874.md) | Feb 13, 2018 |
| Microsoft | Microsoft Office 2010 Service Pack 2 (64-bit editions) |  | [KB3114874](https://patchblox.com/security/data/fix/microsoft/kb3114874.md) | Feb 13, 2018 |
| Microsoft | Microsoft Office 2013 RT Service Pack 1 |  | [KB3172459](https://patchblox.com/security/data/fix/microsoft/kb3172459.md) | Feb 13, 2018 |
| Microsoft | Microsoft Office 2013 Service Pack 1 (32-bit editions) |  | [KB3172459](https://patchblox.com/security/data/fix/microsoft/kb3172459.md) | Feb 13, 2018 |
| Microsoft | Microsoft Office 2013 Service Pack 1 (64-bit editions) |  | [KB3172459](https://patchblox.com/security/data/fix/microsoft/kb3172459.md) | Feb 13, 2018 |
| Microsoft | Microsoft Office 2016 (32-bit edition) |  | [KB4011143](https://patchblox.com/security/data/fix/microsoft/kb4011143.md) | Feb 13, 2018 |
| Microsoft | Microsoft Office 2016 (64-bit edition) |  | [KB4011143](https://patchblox.com/security/data/fix/microsoft/kb4011143.md) | Feb 13, 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