# Microsoft Exchange Server 2019 Cumulative Update 12 security updates

Patch Radar has 11 security fixes for Microsoft Exchange Server 2019 Cumulative Update 12, closing 40 CVEs, 4 of which are being exploited. The newest security fix is KB5032146, released November 14, 2023. This product is no longer supported.

- Web page: https://patchblox.com/security/product/microsoft/microsoft-exchange-server-2019-cumulative-update-12
- Platform: Microsoft
- Vendor: Microsoft
- Supported: no

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| [KB5032146](https://patchblox.com/security/data/fix/microsoft/kb5032146.md) | Nov 14, 2023 |  | Urgent | 4 | 0 |
| [KB5030877](https://patchblox.com/security/data/fix/microsoft/kb5030877.md) | Oct 10, 2023 |  | Urgent | 1 | 0 |
| [KB5030524](https://patchblox.com/security/data/fix/microsoft/kb5030524.md) | Sep 12, 2023 |  | Urgent | 11 | 0 |
| [KB5026261](https://patchblox.com/security/data/fix/microsoft/kb5026261.md) | Jun 13, 2023 |  | Urgent | 2 | 0 |
| [KB5023038](https://patchblox.com/security/data/fix/microsoft/kb5023038.md) | Feb 14, 2023 |  | Patch now | 3 | 1 |
| [KB5024296](https://patchblox.com/security/data/fix/microsoft/kb5024296.md) | Feb 14, 2023 |  | Urgent | 1 | 0 |
| [KB5022193](https://patchblox.com/security/data/fix/microsoft/kb5022193.md) | Jan 10, 2023 |  | Urgent | 5 | 0 |
| [KB5019758](https://patchblox.com/security/data/fix/microsoft/kb5019758.md) | Nov 8, 2022 |  | Patch now | 6 | 3 |
| [KB5019077](https://patchblox.com/security/data/fix/microsoft/kb5019077.md) | Aug 9, 2022 |  | Urgent | 5 | 0 |
| [KB5015322](https://patchblox.com/security/data/fix/microsoft/kb5015322.md) | Aug 9, 2022 |  | Routine | 1 | 0 |
| [KB5014261](https://patchblox.com/security/data/fix/microsoft/kb5014261.md) | May 10, 2022 |  | High | 1 | 0 |

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Data as of 2026-11-12T07:53:35Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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