critical9.8Known exploited
CVE-2024-21413
Microsoft Outlook Improper Input Validation Vulnerability
Exploited in the wild
This vulnerability is on a Known Exploited Vulnerabilities catalogue, added 2025-02-06. Federal due date: 2025-02-27.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Impact
Microsoft Outlook Remote Code Execution Vulnerability
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | 365 Apps | All versions |
| Microsoft | Office 2016 | All versions |
| Microsoft | Office 2019 | All versions |
| Microsoft | Office Long Term Servicing Channel | Version 2021 |
Weakness classification
References
- NVD record
- CVE.org record
- CISA KEV catalog
- 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
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-21413