high8.8
CVE-2026-102858
Heap-based buffer overflow in Microsoft Office OneNote allows an unauthorized attacker to execute code over a network.
Impact
Heap-based buffer overflow in Microsoft Office OneNote allows an unauthorized attacker to execute code over a network.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Microsoft 365 | All versions |
| Microsoft | Office 2021 | All versions |
| Microsoft | Office 2024 | All versions |