Microsoft Slams Public Zero-Day Disclosures Amid GitHub Researcher Account Removal
May 28, 2026
Zero Day / Vulnerability Disclosure
Microsoft has come out strongly in favor of Coordinated Vulnerability Disclosure (CVD), urging the research community to share their findings and give affected vendors an opportunity to better understand the impact and address them before they are publicly disclosed. The development comes after a researcher named Chaotic Eclipse (aka Nightmare-Eclipse) disclosed details of multiple zero-day vulnerabilities affecting multiple Windows components, including Defender and BitLocker, over the past month, citing a breakdown in Microsoft's handling of the vulnerability disclosure process. "In recent weeks, several zero-day vulnerabilities have been publicly disclosed," the tech giant said . "The details of these vulnerabilities were not shared with Microsoft prior to release, and the disclosures put our customers at unnecessary risk." "In response to the unnecessary risk created by these disclosures, our security teams have been working around the clock to...
