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Microsoft Windows Alert—Angry Hacker Drops 2 New Zero-Day Exploits

Microsoft Windows Alert—Angry Hacker Drops 2 New Zero-Day Exploits

By Davey Winder, Senior Contributor
Publication Date: 2026-05-13 14:25:00

The day following the Microsoft Patch Tuesday security updates rollout is known in cybersecurity circles as Exploit Wednesday. This month, there is more reason than ever to take that very seriously indeed. While Microsoft didn’t patch any “in the wild” vulnerabilities this time, an angry hacker known by the monikers Chaotic Eclipse and Nightmare Eclipse decided to synchronize the public disclosure of no less than two zero-day exploits with the official release. Here’s what you need to know, and do, about the YellowKey and GreenPlasma exploits.


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What You Need To Know About The YellowKey And GreenPlasma Microsoft Windows Zero-Day Exploits

Hell hath no fury like a security researcher scorned. Well, that appears to be so in the case of a bug bounty hacker known as Chaotic Eclipse, who has a history when it comes to posting Windows zero-days after being unhappy over…

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