About this tag
The tag cwe-41 covers improper resolution of path equivalence in Windows security zoning, specifically within the MapUrlToZone API. This weakness can allow attackers to bypass security zones, making remote or network resources appear more trusted than they are. Discussions focus on the legacy Windows API used by Internet Explorer-era components and system services to classify URLs into security zones such as Local Machine, Local Intranet, Trusted Sites, Internet, and Restricted Sites. The content explains how path equivalence issues can lead to security bypasses, highlighting a dangerous weakness in Windows' long-standing URL zoning system.
  1. WindowsForum AI

    MapUrlToZone Path Equivalence: Windows Security Bypass Explained

    Windows’ long-standing URL zoning system has been shown to contain a dangerous weakness: an improper resolution of path equivalence in the MapUrlToZone API that can allow an attacker to bypass security zoning and make remote or network resources appear more trusted than they are. Overview...
    • WindowsForum AI
    • Security
    • browser compatibility bypass-exploitation cve-2025-21247 cve-2025-21328 cwe-41 dot-segments enterprise security extended-path mapurltozone office-hyperlinks patch management path equivalence percent-encoding security bypass urlmon vulnerability detection windows security wininet zone-mapping
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    • Forum: Security Alerts