# KB3189040: October 2016 security update

KB3189040, released October 11, 2016, fixes 1 CVE across 4 products. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/microsoft/kb3189040
- Platform: Microsoft
- Released: Oct 11, 2016
- Priority: High (Closes CVE-2016-3209, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/3189040

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Microsoft .NET Framework 4.6 on Windows Server 2008 for 32-bit Systems Service Pack 2](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-4.6-on-windows-server-2008-for-32-bit-systems-service-pack-2.md) |  |  |
| [Microsoft .NET Framework 4.6 on Windows Server 2008 for x64-based Systems Service Pack 2](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-4.6-on-windows-server-2008-for-x64-based-systems-service-pack-2.md) |  |  |
| [Microsoft .NET Framework 4.6 on Windows Vista Service Pack 2](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-4.6-on-windows-vista-service-pack-2.md) |  |  |
| [Microsoft .NET Framework 4.6 on Windows Vista x64 Edition Service Pack 2](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-4.6-on-windows-vista-x64-edition-service-pack-2.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2016-3209](https://patchblox.com/security/data/cve/CVE-2016-3209.md) | High | Microsoft Graphics Component | n/a | 0.5365 |  |

---

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo