A proof-of-concept (PoC) exploit for a critical zero-day vulnerability in Microsoft Defender (CVE-2026-33825) has been publicly released by the independent researcher known as Chaotic Eclipse, marking a significant escalation in the ongoing tensions between Microsoft’s Security Response Center (MSRC) and the research community. The exploit was disclosed on April 15, 2026, through the researcher’s official […] The post PoC Exploit Released for Microsoft Defender 0-Day Vulnerability appeared first on Cyber Security News.