mícrosoft Patch Tuesday: A wormable bug in a security mechanism and other delights The bug is in the SPNEGO Extended Negotiation Security Mechanism – which essentially allows a client and server to negotiate the choice of security mechanism that they use. Edward Targett Jul 08, 2025 - 2 min read Get the full story: Subscribe for free Join peers managing over $100 billion in annual IT spend and subscribe to unlock full access to The Stack’s analysis and events. Subscribe now Already a member? Sign in