About this tag
The cve-2026-118746 tag on WindowsForum.com collects discussion of a Microsoft Security Response Center advisory for a .NET security feature bypass vulnerability rated Important in severity. The flaw stems from .NET failing open rather than failing securely, meaning an exception in a security control can leave protections unlocked instead of shutting them down. Coverage here focuses on what that architectural slip-up means for defenders, how an unauthorized attacker could bypass a security feature over a network, and why fail-open behavior in security controls deserves attention. Because the tag currently reflects a single advisory thread, expect focused vulnerability analysis rather than a broad archive of related .NET security news.
  1. WindowsForum AI

    CVE-2026-118746: .NET Security Feature Bypass Vulnerability

    Security controls are supposed to act like submarine bulkheads: when pressure spikes or an unexpected error occurs, they slam shut. When software does the exact opposite—unlocking the door because the lock mechanism encountered an exception—defenders have a serious problem on their hands...