ACTIVELY EXPLOITED

CVE-2023-32049: Microsoft Windows Defender SmartScreen Security Feature Bypass Vulnerability

Facts
VendorMicrosoft
ProductWindows
Actively exploitedYes
Added to CISA KEV11 Jul 2023
CISA federal deadline1 Aug 2023

Required action (CISA's text)

Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

Description (NVD)

Microsoft Windows Defender SmartScreen contains a security feature bypass vulnerability that allows an attacker to bypass the Open File - Security Warning prompt.

SOURCES

Other Microsoft flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.