CVE-2024-21351
Microsoft Windows SmartScreen Security Feature Bypass Vulnerability
Microsoft · Windows
Vulnerability details
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.
Added to CISA KEV: 2024-02-13
Ransomware campaign use: Unknown
CISA due date: 2024-03-05
Defensive guidance from CISA
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.
Source catalog date: 2026-11-06T19:44:45.1797Z · Last retrieved: 2026-11-06 21:02:26 UTC