A newly discovered 0-click NTLM authentication bypass vulnerability has resurfaced within Microsoft Telnet Server implementations, exposing a dangerous flaw in outdated yet still-operational systems. Veriti research reveals that this vulnerability, requiring no user interaction, enables remote attackers to exploit NTLM authentication mechanisms and potentially gain unauthorized access. This attack vector stems from legacy architecture still […]

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Veriti Research

Source: Security Boulevard
Source Link: https://securityboulevard.com/2025/05/0-click-ntlm-auth-bypass-exposes-legacy-microsoft-systems/?utm_source=rss&utm_medium=rss&utm_campaign=0-click-ntlm-auth-bypass-exposes-legacy-microsoft-systems