# KB4580470: October 2020 security update

KB4580470, released October 13, 2020, fixes 1 CVE across 6 products. None of them is reported as exploited. Patch Radar priority: Routine. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/microsoft/kb4580470
- Platform: Microsoft
- Released: Oct 13, 2020
- Priority: Routine (Closes CVE-2020-16937)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/4580470

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-2.0-service-pack-2-on-windows-server-2008-for-32-bit-systems-service-pack-2.md) |  |  |
| [Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-2.0-service-pack-2-on-windows-server-2008-for-x64-based-systems-service-pack-2.md) |  |  |
| [Microsoft .NET Framework 4.5.2 on Windows Server 2008 for 32-bit Systems Service Pack 2](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-4.5.2-on-windows-server-2008-for-32-bit-systems-service-pack-2.md) |  |  |
| [Microsoft .NET Framework 4.5.2 on Windows Server 2008 for x64-based Systems Service Pack 2](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-4.5.2-on-windows-server-2008-for-x64-based-systems-service-pack-2.md) |  |  |
| [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) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2020-16937](https://patchblox.com/security/data/cve/CVE-2020-16937.md) | Routine | .NET Framework | 4.7 | 0.0329 | Disclosed |

---

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo