QUIC-LEAK Vulnerability Allows Attackers to Drain Server Memory and Cause DoS

Security researchers at Imperva have disclosed a critical pre-handshake memory exhaustion vulnerability in the widely-used LSQUIC QUIC implementation that enables remote attackers to crash servers through denial-of-service attacks. The flaw, designated CVE-2025-54939 and dubbed “QUIC-LEAK,” bypasses standard QUIC connection-level protections…

New Campaign Uses Active Directory Federation Services to Steal M365 Credentials

Researchers at Push Security have discovered a new phishing campaign that targets Microsoft 365 (M365) systems and uses Active Directory Federation Services (ADFS) to enable credential theft. This attack vector exploits Microsoft’s authentication redirect mechanisms, effectively turning a legitimate service…

22-year-old Operator of ‘Rapper Bot’ Botnet Charged for Launching 3 Tbps DDoS Attack

Federal authorities have charged a 22-year-old Oregon man with operating one of the most powerful distributed denial-of-service (DDoS) botnets ever discovered, marking a significant victory in the ongoing battle against cybercriminal infrastructure. Ethan Foltz of Eugene, Oregon, faces federal charges…

CISA Issues Four ICS Advisories on Vulnerabilities and Exploits

The Cybersecurity and Infrastructure Security Agency (CISA) released four critical Industrial Control Systems (ICS) advisories on August 19, 2025, alerting organizations to current security vulnerabilities and potential exploits affecting critical infrastructure systems. These advisories provide essential information for administrators and…