# KB5010324: March 2022 security update

KB5010324, released March 8, 2022, fixes 1 CVE in Microsoft Exchange Server 2013 Cumulative Update 23. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/microsoft/kb5010324
- Platform: Microsoft
- Released: Mar 8, 2022
- Priority: Urgent (Closes CVE-2022-23277, exploitation more likely)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/5010324

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Microsoft Exchange Server 2013 Cumulative Update 23](https://patchblox.com/security/data/product/microsoft/microsoft-exchange-server-2013-cumulative-update-23.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2022-23277](https://patchblox.com/security/data/cve/CVE-2022-23277.md) | Urgent | Microsoft Exchange Server | 8.8 | 0.4111 | More likely |

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo