7.8
High
CVE-2026-64912 Stack-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code locally
Description
Stack-based buffer overflow in Microsoft Office Access 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 → latest | No fix stated |
| Microsoft Access 2016 16.0 | 16.0.0 → < 16.0.5565.1000 | 16.0.5565.1000 |
| Microsoft Access 2016 (32-bit edition) 16.0 | 16.0.0 → < 16.0.5565.1000 | 16.0.5565.1000 |
| Microsoft Office 2019 19.0 | 19.0.0 → latest | No fix stated |
| Microsoft Office LTSC 2021 16.0 | 16.0.1 → latest | No fix stated |
| Microsoft Office LTSC 2024 16.0 | 16.0.0 → latest | No fix stated |
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