CVE-2023-21721: Microsoft Onenote

Medium severity, CVSS 6.5. EPSS: 0.9% chance of exploitation in the next 30 days.

Microsoft OneNote Elevation of Privilege Vulnerability

Affected products

• Microsoft Onenote: before 16.0.16026.20158 (fixed in 16.0.16026.20158)

Published 2023-02-14. Last modified 2026-08-19.