CVE-2025-21343: Windows Web Threat Defense User Service Information Disclosure Vulnerability
First published: Tue Jan 14 2025(Updated: )
Windows Web Threat Defense User Service Information Disclosure Vulnerability
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows 11 | =23H2 | |
| Microsoft Windows 11 | =23H2 | |
| Microsoft Windows 11 | =24H2 | |
| Microsoft Windows 11 | =24H2 | |
| Microsoft Windows 11 | =22H2 | |
| Microsoft Windows 11 | =22H2 | |
| Microsoft Windows 11 22h2 | <10.0.22621.4751 | |
| Microsoft Windows 11 23h2 | <10.0.22631.4751 | |
| Microsoft Windows 11 Home Edition | <10.0.26100.2894 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-21343?
CVE-2025-21343 is classified as a medium-severity information disclosure vulnerability.
How do I fix CVE-2025-21343?
To fix CVE-2025-21343, install the appropriate security update provided by Microsoft for your version of Windows 11.
What versions of Windows 11 are affected by CVE-2025-21343?
CVE-2025-21343 affects Windows 11 versions 22H2, 23H2, and 24H2 on both x86_64 and ARM64 architectures.
What type of vulnerability is CVE-2025-21343?
CVE-2025-21343 is an information disclosure vulnerability that could allow unauthorized access to sensitive information.
Is there a known exploit for CVE-2025-21343?
As of now, there are no publicly known exploits for CVE-2025-21343, but it is recommended to patch the vulnerability as soon as possible.
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