# KB4586808: November 2020 security update

KB4586808, released November 10, 2020, fixes 22 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/fix/microsoft/kb4586808
- Platform: Microsoft
- Released: Nov 10, 2020
- Priority: Urgent (Closes CVE-2020-17051, exploitation more likely)
- CVEs: 22, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/4586808

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Windows Server 2012](https://patchblox.com/security/data/product/microsoft/windows-server-2012.md) |  |  |
| [Windows Server 2012 (Server Core installation)](https://patchblox.com/security/data/product/microsoft/windows-server-2012-server-core-installation.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2020-17051](https://patchblox.com/security/data/cve/CVE-2020-17051.md) | Urgent | Microsoft Windows | 9.8 | 0.1062 | More likely |
| [CVE-2020-17042](https://patchblox.com/security/data/cve/CVE-2020-17042.md) | Urgent | Microsoft Windows | 8.8 | 0.0511 |  |
| [CVE-2020-17056](https://patchblox.com/security/data/cve/CVE-2020-17056.md) | Urgent | Microsoft Windows | 5.5 | 0.0131 | More likely |
| [CVE-2020-17038](https://patchblox.com/security/data/cve/CVE-2020-17038.md) | Urgent | Microsoft Graphics Component | 7.8 | 0.0100 | More likely |
| [CVE-2020-17088](https://patchblox.com/security/data/cve/CVE-2020-17088.md) | Urgent | Windows Common Log File System Driver | 7.8 | 0.0088 | More likely |
| [CVE-2020-17047](https://patchblox.com/security/data/cve/CVE-2020-17047.md) | High | Microsoft Windows | 7.5 | 0.2710 |  |
| [CVE-2020-16997](https://patchblox.com/security/data/cve/CVE-2020-16997.md) | High | Microsoft Windows | 7.7 | 0.0403 |  |
| [CVE-2020-17043](https://patchblox.com/security/data/cve/CVE-2020-17043.md) | High | Microsoft Windows | 7.8 | 0.0285 |  |
| [CVE-2020-17044](https://patchblox.com/security/data/cve/CVE-2020-17044.md) | High | Microsoft Windows | 7.8 | 0.0285 |  |
| [CVE-2020-17011](https://patchblox.com/security/data/cve/CVE-2020-17011.md) | High | Microsoft Windows | 7.8 | 0.0104 |  |
| [CVE-2020-17001](https://patchblox.com/security/data/cve/CVE-2020-17001.md) | High | Microsoft Windows | 7.8 | 0.0100 |  |
| [CVE-2020-17024](https://patchblox.com/security/data/cve/CVE-2020-17024.md) | High | Microsoft Windows | 7.8 | 0.0099 |  |
| [CVE-2020-17041](https://patchblox.com/security/data/cve/CVE-2020-17041.md) | High | Microsoft Windows | 7.8 | 0.0099 |  |
| [CVE-2020-17068](https://patchblox.com/security/data/cve/CVE-2020-17068.md) | High | Microsoft Graphics Component | 7.8 | 0.0098 |  |
| [CVE-2020-17014](https://patchblox.com/security/data/cve/CVE-2020-17014.md) | High | Microsoft Windows | 7.8 | 0.0095 |  |
| [CVE-2020-1599](https://patchblox.com/security/data/cve/CVE-2020-1599.md) | Routine | Microsoft Windows | 5.5 | 0.1912 |  |
| [CVE-2020-17029](https://patchblox.com/security/data/cve/CVE-2020-17029.md) | Routine | Microsoft Graphics Component | 5.5 | 0.0139 |  |
| [CVE-2020-17036](https://patchblox.com/security/data/cve/CVE-2020-17036.md) | Routine | Microsoft Windows | 5.5 | 0.0139 |  |
| [CVE-2020-17045](https://patchblox.com/security/data/cve/CVE-2020-17045.md) | Routine | Microsoft Windows | 5.5 | 0.0139 |  |
| [CVE-2020-17000](https://patchblox.com/security/data/cve/CVE-2020-17000.md) | Routine | Microsoft Windows | 5.5 | 0.0131 |  |
| [CVE-2020-17004](https://patchblox.com/security/data/cve/CVE-2020-17004.md) | Routine | Microsoft Graphics Component | 5.5 | 0.0131 |  |
| [CVE-2020-17069](https://patchblox.com/security/data/cve/CVE-2020-17069.md) | Routine | Windows NDIS | 5.5 | 0.0111 |  |

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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

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