February 13, 2024 · Applied Cybernetics Group
CVE-2024-21351 — Microsoft Windows
Microsoft Windows SmartScreen Security Feature Bypass Vulnerability
- Added to KEV
2024-02-13- Federal due date
2024-03-05- Vendor
- Microsoft
- Product
- Windows
- EPSS
- 93.5th percentile (score 0.107, as of
2026-06-08) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2024-21351
CISA short description
Microsoft Windows SmartScreen contains a security feature bypass vulnerability that allows an attacker to bypass the SmartScreen user experience and inject code to potentially gain code execution, which could lead to some data exposure, lack of system availability, or both.
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.