Microsoft Windows Defender SmartScreen Security Feature Bypass Vulnerability

Added to KEV
2023-07-11
Federal due date
2023-08-01
Vendor
Microsoft
Product
Windows
EPSS
92.7th percentile (score 0.089, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2023-32049

CISA short description

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

Required action

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

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.