# KB4042120: October 2017 security update

KB4042120, released October 10, 2017, fixes 5 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/kb4042120
- Platform: Microsoft
- Released: Oct 10, 2017
- Priority: Urgent (Closes CVE-2017-11814, exploitation more likely)
- CVEs: 5, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/4042120

## 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-2017-11765](https://patchblox.com/security/data/cve/CVE-2017-11765.md) | Urgent | Windows Kernel | 5.5 | 0.0232 | More likely |
| [CVE-2017-11814](https://patchblox.com/security/data/cve/CVE-2017-11814.md) | Urgent | Windows Kernel | 5.5 | 0.0232 | More likely |
| [CVE-2017-8689](https://patchblox.com/security/data/cve/CVE-2017-8689.md) | Urgent | Windows Kernel-Mode Drivers | 7.0 | 0.0115 | More likely |
| [CVE-2017-8694](https://patchblox.com/security/data/cve/CVE-2017-8694.md) | Urgent | Windows Kernel-Mode Drivers | 7.0 | 0.0115 | More likely |
| [CVE-2017-11824](https://patchblox.com/security/data/cve/CVE-2017-11824.md) | Routine | Microsoft Graphics Component | 0.0 | 0.0121 |  |

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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