6.5

CVE-2023-21721: microsoft microsoft onenote for android Improper Authentication

CVSS: 6.5v3.1MediumModified
Published 14-02-2023Last modified 19-08-2026
Open JSON

Vulnerability summary

CVE-2023-21721 is a medium (CVSS 6.5) Improper Authentication vulnerability in microsoft microsoft onenote for android. EPSS estimates a 0.88% chance of exploitation in the next 30 days, higher than 58.5% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.88%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 14-02-2023
    PublishedVulnerability first disclosed.
  2. 19-08-2026
    Last modifiedVulnerability information updated.

Description

Microsoft OneNote Elevation of Privilege Vulnerability

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.88%

Chance of exploitation in the next 30 days

Percentile

59%

Versus all other CVEs

30-day change

0.00 pp

From 0.88% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.88%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Microsoft2 products

1 vendor · 2 products

References

1 links