CVE-2023-21721

Name: CVE-2023-21721
Creator: NVD / NIST
Published: 2023-02-14T20:15:14.68+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.88%

Last modified Jun 17, 2026

CVE-2023-21721 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Microsoft OneNote Elevation of Privilege Vulnerability. EPSS estimates a 0.88% chance of exploitation in the next 30 days.

Description

Microsoft OneNote Elevation of Privilege Vulnerability

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

EPSS Probability

0.88%

54.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Microsoft	Onenote	< 16.0.16026.20158

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21721Patch, Vendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21721Patch, Vendor Advisory

Timeline

Published: Feb 14, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-21721?

Microsoft OneNote Elevation of Privilege Vulnerability

How severe is CVE-2023-21721?

CVE-2023-21721 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.88% probability of exploitation in the next 30 days.

How do I fix CVE-2023-21721?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-21721?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST