CVE-2025-29822 Microsoft OneNote Security Feature Bypass Vulnerability

What is CVE-2025-29822?

CVE-2025-29822 is a high-severity vulnerability in Microsoft Office, published on 8 Apr 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

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

Weakness: CWE-184

Which versions are affected by CVE-2025-29822?

It affects 3 products.

Products include Microsoft Office, Microsoft Office Long Term Servicing Channel, Microsoft Onenote.

How do I fix CVE-2025-29822?

No fix has been published for CVE-2025-29822 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-29822 being exploited?

There is no known exploitation of CVE-2025-29822 in the wild and no public exploit code.

Other vulnerabilities in Microsoft Office

• CVE-2018-0798 Microsoft Office Memory Corruption Exploited High 8.8
• CVE-2015-1770 Microsoft Office Uninitialized Memory Use Exploited High 8.8
• CVE-2006-2492 Microsoft Word Malformed Object Pointer Exploited High 8.8
• CVE-2018-0802 Microsoft Office Memory Corruption Exploited High 7.8
• CVE-2017-11882 Microsoft Office Memory Corruption Exploited High 7.8

All Microsoft Office vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-ffww-3j7j-g93q.