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Microsoft's nemesis returns: Nightmare Eclipse is back with a new zero day which could be bad news for Windows users
A researcher known as Nightmare Eclipse has disclosed a new zero-day vulnerability in Windows, the tenth such release from this individual. The flaw was revealed shortly after Microsoft's Patch Tuesday update cycle, a pattern the researcher has repeated previously. The timing leaves Windows users potentially exposed before Microsoft can issue a fix.
Microsoft Patches a Record 570 Security Flaws
Microsoft released updates fixing 570 security flaws, nearly triple last month's record-breaking total. The company attributed the surge in vulnerability discoveries to artificial intelligence tools. The patches cover Windows operating systems and other Microsoft software.
A Record-Breaking Patch Tuesday for June 2026
Microsoft's June 2026 Patch Tuesday addressed nearly 200 security vulnerabilities across Windows and related software, the largest monthly update in the company's history. Around 30 of the flaws were rated critical, and exploit code for at least three vulnerabilities is already publicly available, raising the urgency for users and administrators to apply the patches promptly.