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CVE-2024-21413

CISA KEV

Published February 6, 2025 · Updated April 3, 2026

high
Official 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.

Affected Products

VendorProduct
MicrosoftOffice Outlook

Patch Status

Patch by 2025-02-27

Recommended Actions

  1. Check if your systems use any of the affected products listed above.
  2. Apply vendor patches immediately if available.
  3. This vulnerability is in CISA's Known Exploited Vulnerabilities catalog — prioritize remediation.
  4. Monitor vendor advisories for updates and additional mitigations.
  5. Review logs for indicators of compromise related to CVE-2024-21413.