CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2024-21413
Critical (9.8) in Microsoft Office Outlook. In CISA KEV since 2025-02-06. EPSS 95% chance of exploitation in the next 30 days.
Microsoft Outlook Remote Code Execution Vulnerability
Severity
- EPSS
- 95% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)
- CISA KEV
- listed 2025-02-06, due 2025-02-27
- CWE
- CWE-20
- Published
- Modified
- Record from
- the NVD, synced
Affected
- microsoft:365_apps
- microsoft:office_2016
- microsoft:office_2019
- microsoft:office_long_term_servicing_channel
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21413
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21413
- https://research.checkpoint.com/2024/the-risks-of-the-monikerlink-bug-in-microsoft-outlook-and-the-big-picture/
- https://www.vicarius.io/vsociety/posts/cve-2024-21413-critical-monikerlink-vulnerability-affecting-microsoft-outlook-detection-script
- https://www.vicarius.io/vsociety/posts/cve-2024-21413-critical-monikerlink-vulnerability-affecting-microsoft-outlook-mitigation-script