# KB3211308: April 2017 security update

KB3211308, released April 11, 2017, fixes 3 CVEs across 2 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/kb3211308
- Platform: Microsoft
- Released: Apr 11, 2017
- Priority: Urgent (Closes CVE-2017-0180, rated Critical)
- CVEs: 3, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/3211308

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [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-2017-0180](https://patchblox.com/security/data/cve/CVE-2017-0180.md) | Urgent | Windows Hyper-V | 7.6 | 0.0330 |  |
| [CVE-2017-0163](https://patchblox.com/security/data/cve/CVE-2017-0163.md) | Urgent | Windows Hyper-V | 7.6 | 0.0315 |  |
| [CVE-2017-0168](https://patchblox.com/security/data/cve/CVE-2017-0168.md) | High | Windows Hyper-V | 7.7 | 0.0556 |  |

---

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo