CVE-2025-29822: Microsoft Office

High severity, CVSS 7.8. EPSS: 0.8% chance of exploitation in the next 30 days.

Incomplete list of disallowed inputs in Microsoft Office OneNote allows an unauthorized attacker to bypass a security feature locally.

Affected products

• Microsoft Office: version 2019 only
• Microsoft Office Long Term Servicing Channel: version 2021 only; version 2024 only
• Microsoft Onenote: affected versions not specified; version 2016 only

Published 2025-04-08. Last modified 2026-06-17.