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Microsoft / Security / Patch Tuesday

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.

By Edward Targett

Updated Jul 8, 2025 8:23 PM / Published Jul 8, 2025 8:09 PM 2 min read

Patch Tuesday: A wormable bug in a security mechanism and other delights

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Edward Targett

Ed is a co-founder of The Stack. He previously edited Computer Business Review. He has also covered energy markets. He started his journalism career on local papers. He left school at 15 and has made a living asking "but why?" ever since.