7.0
High
CVE-2026-81389 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally
Description
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Microsoft 365 Apps for Enterprise 16.0 | 16.0.1 → < 16.0.20326.20138 | 16.0.20326.20138 |
| Microsoft Excel 2016 16.0 | 16.0.0.0 → < 16.0.5569.1003 | 16.0.5569.1003 |
| Microsoft Office 2016 16.0 | 16.0.0 → < 16.0.5569.1003 | 16.0.5569.1003 |
| Microsoft Office 2019 16.0 | earliest → < 16.0.10417.20207 | 16.0.10417.20207 |
| Microsoft Office 365 for Mac 1.0 | 1.0.0 → < 16.113.26091433 | 16.113.26091433 |
| Microsoft Office LTSC 2021 16.0 | 16.0.1 → < 16.0.14334.20906 | 16.0.14334.20906 |
| Microsoft Office LTSC 2024 16.0 | 16.0.0 → < 16.0.17932.20976 | 16.0.17932.20976 |
| Microsoft Office LTSC for Mac 2021 16.0 | 16.0.1 → < 16.113.26091433 | 16.113.26091433 |
| Microsoft Office LTSC for Mac 2024 16.0 | 16.0.0 → < 16.113.26091433 | 16.113.26091433 |
References
- Microsoft Excel Remote Code Execution Vulnerability msrc.microsoft.com
Timeline
- Published
- Last modified
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