Category: Cyber Security News

Windows SMB Client Vulnerability Enables Attacker to Own Active Directory

A critical vulnerability in Windows SMB client authentication that enables attackers to compromise Active Directory environments through NTLM reflection exploitation. Classified as an improper access control vulnerability, this vulnerability allows authorized attackers to escalate privileges via carefully orchestrated authentication relay…

Mandiant Releases Rainbow Tables Enabling NTLMv1 Admin Password Hacking

Google-owned Mandiant has publicly released a comprehensive dataset of Net-NTLMv1 rainbow tables, marking a significant escalation in demonstrating the security risks of legacy authentication protocols. The release underscores an urgent message: organizations must immediately migrate away from Net-NTLMv1, a deprecated…

Researchers Gain Access to StealC Malware Command-and-Control Systems

Security researchers successfully exploited vulnerabilities in the StealC malware infrastructure, gaining access to operator control panels and exposing a threat actor’s identity through their own stolen session cookies. The breach highlights critical security failures in criminal operations built around credential…

Fortinet FortiSIEM Vulnerability CVE-2025-64155 Actively Exploited in Attacks

Fortinet FortiSIEM vulnerability CVE-2025-64155 is under active exploitation, as confirmed by Defused through their honeypot deployments. This critical OS command injection flaw enables unauthenticated remote code execution, posing severe risks to enterprise security monitoring systems. CVE-2025-64155 stems from improper neutralization…