CVE-2023-21721
Low
No strong exploitation signal.
CVSS base
6.5
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
EPSS — probability of exploitation (30 days)
0.9%
57.6th percentile
CISA KEV
Not listed
Weakness / dates
CWE-287
Published 2023-02-14 · modified 2026-08-19
CVSS breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
| Attack Vector | N | Network |
| Attack Complexity | L | Low |
| Privileges Required | L | Low |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | N | None |
| Integrity | H | High |
| Availability | N | None |
Timeline
- 2023-02-14 — Published (NVD)
- 2026-08-19 — Last modified (NVD)
Description
Microsoft OneNote Elevation of Privilege Vulnerability