March 14, 2023 · Applied Cybernetics Group
CVE-2023-24880 Microsoft Windows
known ransomware use
Microsoft Windows SmartScreen Security Feature Bypass Vulnerability
- Added to KEV
2023-03-14- Federal due date
2023-04-04- Vendor
- Microsoft
- Product
- Windows
- EPSS
- 99.6th percentile (score 0.780, as of
2026-11-06) - NVD CVSS v3.1
- —
- Ransomware use
- Known
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2023-24880
CISA short description
Microsoft Windows SmartScreen contains a security feature bypass vulnerability that could allow an attacker to evade Mark of the Web (MOTW) defenses via a specially crafted malicious file.
Required action
Apply updates per vendor instructions.