# KB4493225: March 2021 security update

KB4493225, released March 12, 2021, fixes 2 CVEs across 2 products. One of them is being exploited (CVE-2021-27059); 1 on CISA KEV. Patch Radar priority: Patch now.

- Web page: https://patchblox.com/security/fix/microsoft/kb4493225
- Platform: Microsoft
- Released: Mar 12, 2021
- Priority: Patch now (Closes CVE-2021-27059, exploited (CISA KEV))
- CVEs: 2, exploited: 1, on CISA KEV: 1
- Vendor advisory: https://support.microsoft.com/help/4493225

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Microsoft Office 2016 (32-bit edition)](https://patchblox.com/security/data/product/microsoft/microsoft-office-2016-32-bit-edition.md) |  |  |
| [Microsoft Office 2016 (64-bit edition)](https://patchblox.com/security/data/product/microsoft/microsoft-office-2016-64-bit-edition.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2021-27059](https://patchblox.com/security/data/cve/CVE-2021-27059.md) | Patch now | Microsoft Office | 7.6 | 0.0608 | CISA KEV |
| [CVE-2021-24108](https://patchblox.com/security/data/cve/CVE-2021-24108.md) | High | Microsoft Office | 7.8 | 0.0270 |  |

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo