# CVE-2023-33162: Microsoft Excel Information Disclosure Vulnerability

CVE-2023-33162 is fixed in 6 products on 1 platform, first by KB5002434, released July 11, 2023. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-33162
- Priority: Routine
- CVSS: 5.5 (Important)
- EPSS: 0.0076
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Jul 11, 2023
- Weakness: Out-of-bounds Read
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-33162

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Microsoft Excel 2013 RT Service Pack 1 |  | [KB5002434](https://patchblox.com/security/data/fix/microsoft/kb5002434.md) | Jul 11, 2023 |
| Microsoft | Microsoft Excel 2013 Service Pack 1 (32-bit editions) |  | [KB5002434](https://patchblox.com/security/data/fix/microsoft/kb5002434.md) | Jul 11, 2023 |
| Microsoft | Microsoft Excel 2013 Service Pack 1 (64-bit editions) |  | [KB5002434](https://patchblox.com/security/data/fix/microsoft/kb5002434.md) | Jul 11, 2023 |
| Microsoft | Microsoft Excel 2016 (32-bit edition) |  | [KB5002426](https://patchblox.com/security/data/fix/microsoft/kb5002426.md) | Jul 11, 2023 |
| Microsoft | Microsoft Excel 2016 (64-bit edition) |  | [KB5002426](https://patchblox.com/security/data/fix/microsoft/kb5002426.md) | Jul 11, 2023 |
| Microsoft | Microsoft Office Online Server |  | [KB5002421](https://patchblox.com/security/data/fix/microsoft/kb5002421.md) | Jul 11, 2023 |

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Data as of 2026-11-08T06:59:42Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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