high7.8
CVE-2026-20949
Improper access control in Microsoft Office Excel allows an unauthorized attacker to bypass a security feature locally.
Impact
Improper access control in Microsoft Office Excel allows an unauthorized attacker to bypass a security feature locally.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | 365 Apps | All versions |
| Microsoft | Office Long Term Servicing Channel | Versions 2021, 2024 |