# KB4578105: October 2020 security update

KB4578105, released October 13, 2020, fixes 1 CVE in Microsoft Dynamics 365 (on-premises) version 8.2. 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/kb4578105
- Platform: Microsoft
- Released: Oct 13, 2020
- Priority: Routine (Closes CVE-2020-16956)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/4578105

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Microsoft Dynamics 365 (on-premises) version 8.2](https://patchblox.com/security/data/product/microsoft/microsoft-dynamics-365-on-premises-version-8.2.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2020-16956](https://patchblox.com/security/data/cve/CVE-2020-16956.md) | Routine | Microsoft Dynamics | 5.4 | 0.0143 |  |

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Data as of 2026-11-07T12:40:37Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo