CVE-2024-21413
Microsoft Outlook Improper Input Validation Vulnerability
IN CISA KEV
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.
- Vendor
- Microsoft
- Product
- Office Outlook
- CVSS
- No score recorded (no NVD record loaded for this entry)
- CWE
- CWE-20
- Published
- Not recorded
- NVD modified
- Not recorded
CISA KEV
- Date added
- 2025-02-06
- Due date
- 2025-02-27
- Ransomware use
- Unknown
- Required action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
EPSS
94.7% chance of exploitation in the next 30 days (percentile 99th)
FIRST EPSS, updated 17 Oct 2026. About EPSS
CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.
Data last updated 18 Oct 2026. Sources: NVD API 2.0, CISA KEV catalog, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.