# CVE-2021-42292: Microsoft Excel Security Feature Bypass Vulnerability

CVE-2021-42292 is fixed in 10 products on 1 platform, first by KB5002072, released November 16, 2021. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on November 17, 2021. Patch Radar priority: Patch now.

- Web page: https://patchblox.com/security/cve/CVE-2021-42292
- Priority: Patch now
- CVSS: 7.8 (Important)
- EPSS: 0.4301
- CISA KEV: listed Nov 17, 2021, federal due date Dec 1, 2021
- Exploited (vendor report): yes
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Detected
- Published: Nov 16, 2021
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-42292

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Microsoft Excel 2013 RT Service Pack 1 |  | [KB5002072](https://patchblox.com/security/data/fix/microsoft/kb5002072.md) | Nov 16, 2021 |
| Microsoft | Microsoft Excel 2013 RT Service Pack 1 |  | [KB5002035](https://patchblox.com/security/data/fix/microsoft/kb5002035.md) | Nov 16, 2021 |
| Microsoft | Microsoft Excel 2013 Service Pack 1 (32-bit editions) |  | [KB5002072](https://patchblox.com/security/data/fix/microsoft/kb5002072.md) | Nov 16, 2021 |
| Microsoft | Microsoft Excel 2013 Service Pack 1 (32-bit editions) |  | [KB5002035](https://patchblox.com/security/data/fix/microsoft/kb5002035.md) | Nov 16, 2021 |
| Microsoft | Microsoft Excel 2013 Service Pack 1 (64-bit editions) |  | [KB5002072](https://patchblox.com/security/data/fix/microsoft/kb5002072.md) | Nov 16, 2021 |
| Microsoft | Microsoft Excel 2013 Service Pack 1 (64-bit editions) |  | [KB5002035](https://patchblox.com/security/data/fix/microsoft/kb5002035.md) | Nov 16, 2021 |
| Microsoft | Microsoft Excel 2016 (32-bit edition) |  | [KB5002056](https://patchblox.com/security/data/fix/microsoft/kb5002056.md) | Nov 16, 2021 |
| Microsoft | Microsoft Excel 2016 (32-bit edition) |  | [KB4486670](https://patchblox.com/security/data/fix/microsoft/kb4486670.md) | Nov 16, 2021 |
| Microsoft | Microsoft Excel 2016 (64-bit edition) |  | [KB5002056](https://patchblox.com/security/data/fix/microsoft/kb5002056.md) | Nov 16, 2021 |
| Microsoft | Microsoft Excel 2016 (64-bit edition) |  | [KB4486670](https://patchblox.com/security/data/fix/microsoft/kb4486670.md) | Nov 16, 2021 |
| Microsoft | Microsoft Office 2013 RT Service Pack 1 |  | [KB5002035](https://patchblox.com/security/data/fix/microsoft/kb5002035.md) | Nov 16, 2021 |
| Microsoft | Microsoft Office 2013 Service Pack 1 (32-bit editions) |  | [KB5002035](https://patchblox.com/security/data/fix/microsoft/kb5002035.md) | Nov 16, 2021 |
| Microsoft | Microsoft Office 2013 Service Pack 1 (64-bit editions) |  | [KB5002035](https://patchblox.com/security/data/fix/microsoft/kb5002035.md) | Nov 16, 2021 |
| Microsoft | Microsoft Office 2016 (32-bit edition) |  | [KB4486670](https://patchblox.com/security/data/fix/microsoft/kb4486670.md) | Nov 16, 2021 |
| Microsoft | Microsoft Office 2016 (64-bit edition) |  | [KB4486670](https://patchblox.com/security/data/fix/microsoft/kb4486670.md) | Nov 16, 2021 |

---

Data as of 2026-11-08T19:12:23Z 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

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.