Microsoft Outlook Improper Input Validation Vulnerability
Microsoft — Office Outlook
- Added to KEV catalog
- 6 February 2025
- Federal remediation due date
- 27 February 2025
- Weakness classification (CWE)
- CWE-20
CISA Description
Microsoft Outlook contains an improper input validation vulnerability that allows for remote code execution. Successful exploitation of this vulnerability would allow an attacker to bypass the Office Protected View and open in editing mode rather than protected mode.
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Notes
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21413 ; https://nvd.nist.gov/vuln/detail/CVE-2024-21413
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