ACTIVELY EXPLOITED

CVE-2022-44698: Microsoft Defender SmartScreen Security Feature Bypass Vulnerability

Facts
VendorMicrosoft
ProductDefender
Actively exploitedYes
Added to CISA KEV13 Dec 2022
CISA federal deadline3 Jan 2023
Ransomware useKnown
Weakness (CWE)CWE-755

Required action (CISA's text)

Apply updates per vendor instructions.

Description (NVD)

Microsoft Defender 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.

SOURCES

Other Microsoft flaws

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