Microsoft Windows SPNEGO NEGOEX Remote Code Execution Vulnerability

A remote code execution vulnerability has been identified in the SPNEGO Extended Negotiation (NEGOEX) security mechanism across various Windows Server and Windows 10 versions. This vulnerability allows an attacker to execute arbitrary code on the affected system without user interaction. The issue arises from a use-after-free flaw, where memory is improperly managed, potentially leading to exploitation.

Impact

Exploitation of this vulnerability allows for remote code execution on the affected system.

Remediation

Users can apply the security updates provided by Microsoft to address this vulnerability. These security updates are available through the Microsoft Update Catalog. Specific update details can be found in the Microsoft Knowledge Base articles KB5050048, KB5050004, KB5050049, KB5049993, KB5050013, KB5050009, KB5049984, KB5050021, and KB5049981.