high7.8
CVE-2026-26134
Integer overflow or wraparound in Microsoft Office allows an authorized attacker to elevate privileges locally.
Impact
Integer overflow or wraparound in Microsoft Office allows an authorized attacker to elevate privileges locally.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | 365 Copilot | before 16.0.19822.20000 |