CVE-2025-21343

High

Description

Windows Web Threat Defense User Service Information Disclosure Vulnerability

SeverityHigh
CVSS7.5
Exploit probability—
ProductMicrosoft Windows
PublishedJan 14, 2025
First seenJan 14, 2025

How to fix

Update
  • microsoft windows_11_22h210.0.22621.4751 or later
  • microsoft windows_11_23h210.0.22631.4751 or later
  • microsoft windows_11_24h210.0.26100.2894 or later

Affected products

ProductAffected versionsFixed in
microsoft windows_11_22h2v < 10.0.22621.475110.0.22621.4751
microsoft windows_11_23h2v < 10.0.22631.475110.0.22631.4751
microsoft windows_11_24h2v < 10.0.26100.289410.0.26100.2894

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

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