CVE-2026-77898
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.
- Published Sep 8, 2026
- CVSS 7.5 high
- 0.6% chance of exploitation in the next 30 days (EPSS)
- A fix is available
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.