CVE-2025-29971

Web Threat Defense (WTD.sys) Denial of Service Vulnerability

CVE-2025-29971 is fixed in 6 products on 1 platform, first by KB5058405, released May 13, 2025. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.

Urgent

CVSS

7.5

Important

Exploitation

More likely

Vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.6813

99th percentile

<p>Out-of-bounds read in Web Threat Defense (WTD.sys) allows an unauthorized attacker to deny service over a network.</p>

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Windows 11 Version 22H2 for ARM64-based Systems		KB5058405	May 13, 2025
Windows 11 Version 22H2 for x64-based Systems		KB5058405	May 13, 2025
Windows 11 Version 23H2 for ARM64-based Systems		KB5058405	May 13, 2025
Windows 11 Version 23H2 for x64-based Systems		KB5058405	May 13, 2025
Windows 11 Version 24H2 for ARM64-based Systems		KB5061258	May 13, 2025
Windows 11 Version 24H2 for ARM64-based Systems	26100.4061	KB5058411	May 13, 2025
Windows 11 Version 24H2 for x64-based Systems		KB5061258	May 13, 2025
Windows 11 Version 24H2 for x64-based Systems	26100.4061	KB5058411	May 13, 2025

Details

Published
May 13, 2025
Weakness
Out-of-bounds Read
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29971

For tools and AI agents

This page as data: JSON · Markdown

Link to this page

If this page saved you time, a link to it in your ticket, advisory or write-up helps others find it.

HTML

<a href="https://patchblox.com/security/cve/CVE-2025-29971">CVE-2025-29971 on Patchblox Patch Radar</a>

Reusing the data? How to credit Patch Radar.

Is this on your machines?

Patchblox finds every install below the fixed version on Windows, macOS and Linux, and updates them through your release rings.

Get a demo

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.