Apr 2025: Microsoft OneNote Security Feature Bypass Vulnerability
CVE-2025-29822 Published on April 8, 2025
Microsoft OneNote Security Feature Bypass Vulnerability
Incomplete list of disallowed inputs in Microsoft Office OneNote allows an unauthorized attacker to bypass a security feature locally.
Weakness Type
What is a Denylist / Deny List Vulnerability?
The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete, leading to resultant weaknesses. Developers often try to protect their products against malicious input by performing tests against inputs that are known to be bad, such as special characters that can invoke new commands. However, such lists often only account for the most well-known bad inputs. Attackers may be able to find other malicious inputs that were not expected by the developer, allowing them to bypass the intended protection mechanism.
CVE-2025-29822 has been classified to as a Denylist / Deny List vulnerability or weakness.
Products Associated with CVE-2025-29822
You can be notified by email with stack.watch whenever vulnerabilities like CVE-2025-29822 are published in these products:
Affected Versions
Microsoft 365 Apps for Enterprise:- Version 16.0.1 and below https://aka.ms/OfficeSecurityReleases is affected.
- Version 19.0.0 and below https://aka.ms/OfficeSecurityReleases is affected.
- Version 16.0.1 and below https://aka.ms/OfficeSecurityReleases is affected.
- Version 16.0.0 and below https://aka.ms/OfficeSecurityReleases is affected.
- Version 16.0.1 and below 16.96.25041326 is affected.
- Version 16.0.0 and below 16.96.25041326 is affected.
- Version 1.0.0 and below 16.96.25033028 is affected.
- Version 16.0.0 and below 16.0.5495.1001 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.