# KB4089344: March 2018 security update

KB4089344, released March 13, 2018, fixes 6 CVEs across 5 products. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/microsoft/kb4089344
- Platform: Microsoft
- Released: Mar 13, 2018
- Priority: Urgent (Closes CVE-2018-0814, exploitation more likely)
- CVEs: 6, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/4089344

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Windows Server 2008 for 32-bit Systems Service Pack 2](https://patchblox.com/security/data/product/microsoft/windows-server-2008-for-32-bit-systems-service-pack-2.md) |  |  |
| [Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)](https://patchblox.com/security/data/product/microsoft/windows-server-2008-for-32-bit-systems-service-pack-2-server-core-installation.md) |  |  |
| [Windows Server 2008 for Itanium-Based Systems Service Pack 2](https://patchblox.com/security/data/product/microsoft/windows-server-2008-for-itanium-based-systems-service-pack-2.md) |  |  |
| [Windows Server 2008 for x64-based Systems Service Pack 2](https://patchblox.com/security/data/product/microsoft/windows-server-2008-for-x64-based-systems-service-pack-2.md) |  |  |
| [Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)](https://patchblox.com/security/data/product/microsoft/windows-server-2008-for-x64-based-systems-service-pack-2-server-core-installation.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2018-0811](https://patchblox.com/security/data/cve/CVE-2018-0811.md) | Urgent | Windows Kernel | 5.5 | 0.0181 | More likely |
| [CVE-2018-0813](https://patchblox.com/security/data/cve/CVE-2018-0813.md) | Urgent | Windows Kernel | 5.5 | 0.0181 | More likely |
| [CVE-2018-0814](https://patchblox.com/security/data/cve/CVE-2018-0814.md) | Urgent | Windows Kernel | 5.5 | 0.0181 | More likely |
| [CVE-2018-0817](https://patchblox.com/security/data/cve/CVE-2018-0817.md) | Urgent | Microsoft Graphics Component | 7.0 | 0.0130 | More likely |
| [CVE-2018-0815](https://patchblox.com/security/data/cve/CVE-2018-0815.md) | High | Microsoft Graphics Component | 7.0 | 0.0130 |  |
| [CVE-2018-0816](https://patchblox.com/security/data/cve/CVE-2018-0816.md) | High | Microsoft Graphics Component | 7.0 | 0.0122 |  |

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Data as of 2026-11-07T06:34:28Z 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