MSRC-CVE-2025-21314 — Windows SmartScreen Spoofing Vulnerability

Summary

Impact: Spoofing. Microsoft rating: Important. Not known to be exploited — Exploitation More Likely. Customer action: Required.

Details

According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?
An attacker would have to send the victim a malicious file that the victim would have to execute.

Security updates
10.0.26100.2894 — https://support.microsoft.com/help/5050009
10.0.17763.6775 — https://support.microsoft.com/help/5050008
10.0.20348.3091 — https://support.microsoft.com/help/5049983
10.0.19044.5371 — https://support.microsoft.com/help/5049981
10.0.22621.4751 — https://support.microsoft.com/help/5050021
10.0.25398.1369 — https://support.microsoft.com/help/5049984
10.0.14393.7699 — https://support.microsoft.com/help/5049993

Vulnerabilities 1

Medium 6.5

CVE-2025-21314

Windows SmartScreen Spoofing Vulnerability

Windows SmartScreen Spoofing Vulnerability

Microsoft Windows Server 2019 Windows Server 2019 (Server Core installation) Windows 10 Version 1809 Windows

Jan 14, 2025

Revision history

2025-01-14 #1
Information published.

References

CVE-2025-21314 Windows SmartScreen Spoofing Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21314
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss