# CVE-2016-7264: Microsoft Excel Information Disclosure Vulnerability

CVE-2016-7264 is fixed in 5 products on 1 platform, first by KB3128019, released December 13, 2016. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2016-7264
- Priority: High
- CVSS: n/a (Important)
- EPSS: 0.2321
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Dec 13, 2016
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2016-7264

## Description

<p>An information disclosure vulnerability exists when Microsoft Excel 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 Excel 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 Excel 2007 Service Pack 3 |  | [KB3128019](https://patchblox.com/security/data/fix/microsoft/kb3128019.md) | Dec 13, 2016 |
| Microsoft | Microsoft Excel 2016 for Mac |  | [KB3198800](https://patchblox.com/security/data/fix/microsoft/kb3198800.md) | Dec 13, 2016 |
| Microsoft | Microsoft Excel Viewer 2007 Service Pack 3 |  | [KB3128023](https://patchblox.com/security/data/fix/microsoft/kb3128023.md) | Dec 13, 2016 |
| Microsoft | Microsoft Excel for Mac 2011 |  | [KB3198808](https://patchblox.com/security/data/fix/microsoft/kb3198808.md) | Dec 13, 2016 |
| Microsoft | Microsoft Office Compatibility Pack Service Pack 3 |  | [KB3128022](https://patchblox.com/security/data/fix/microsoft/kb3128022.md) | Dec 13, 2016 |

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