About this tag
The dot-segments tag on WindowsForum.com covers discussions about path equivalence issues in Windows security, particularly the MapUrlToZone API. Tagged content explains how improper resolution of dot-segments (like "." and "..") in URL paths can lead to security zone bypasses, making remote resources appear as trusted local resources. This vulnerability affects legacy Windows components and highlights the importance of correct path normalization in security-critical APIs. The tag is relevant for IT professionals and security researchers analyzing Windows URL handling and zone-based security models.
  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
    • Thread
    • 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