# CVE-2018-8427: Microsoft Graphics Components Information Disclosure Vulnerability

CVE-2018-8427 is fixed in 9 products on 1 platform, first by KB4092444, released October 9, 2018. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-8427
- Priority: Routine
- CVSS: 4.7 (Important)
- EPSS: 0.0229
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Oct 9, 2018
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2018-8427

## Description

<p>An information disclosure vulnerability exists in the way that Microsoft Graphics Components handle objects in memory. An attacker who successfully exploited the vulnerability could obtain information that could be useful for further exploitation.</p> <p>To exploit the vulnerability, a user would have to open a specially crafted file.</p> <p>The security update addresses the vulnerability by correcting how Microsoft Graphics Components handle objects in memory.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Microsoft Excel Viewer 2007 Service Pack 3 |  | [KB4092444](https://patchblox.com/security/data/fix/microsoft/kb4092444.md) | Oct 9, 2018 |
| Microsoft | Microsoft Office Compatibility Pack Service Pack 3 |  | [KB4092444](https://patchblox.com/security/data/fix/microsoft/kb4092444.md) | Oct 9, 2018 |
| Microsoft | Microsoft Office Word Viewer |  | [KB4092464](https://patchblox.com/security/data/fix/microsoft/kb4092464.md) | Oct 9, 2018 |
| Microsoft | Microsoft PowerPoint Viewer 2007 |  | [KB4092444](https://patchblox.com/security/data/fix/microsoft/kb4092444.md) | Oct 9, 2018 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 |  | [KB4463097](https://patchblox.com/security/data/fix/microsoft/kb4463097.md) | Oct 9, 2018 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 |  | [KB4463104](https://patchblox.com/security/data/fix/microsoft/kb4463104.md) | Oct 9, 2018 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) |  | [KB4463097](https://patchblox.com/security/data/fix/microsoft/kb4463097.md) | Oct 9, 2018 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) |  | [KB4463104](https://patchblox.com/security/data/fix/microsoft/kb4463104.md) | Oct 9, 2018 |
| Microsoft | Windows Server 2008 for Itanium-Based Systems Service Pack 2 |  | [KB4463097](https://patchblox.com/security/data/fix/microsoft/kb4463097.md) | Oct 9, 2018 |
| Microsoft | Windows Server 2008 for Itanium-Based Systems Service Pack 2 |  | [KB4463104](https://patchblox.com/security/data/fix/microsoft/kb4463104.md) | Oct 9, 2018 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 |  | [KB4463097](https://patchblox.com/security/data/fix/microsoft/kb4463097.md) | Oct 9, 2018 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 |  | [KB4463104](https://patchblox.com/security/data/fix/microsoft/kb4463104.md) | Oct 9, 2018 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) |  | [KB4463097](https://patchblox.com/security/data/fix/microsoft/kb4463097.md) | Oct 9, 2018 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) |  | [KB4463104](https://patchblox.com/security/data/fix/microsoft/kb4463104.md) | Oct 9, 2018 |

---

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