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Locked in heated rivalry with researcher, Microsoft fixes 0-day they disclosed

Microsoft patches a critical zero-day vulnerability that allowed for remote code execution. This fix comes after a security researcher, also known as Nightmare Eclipse, disclosed the flaw and another separate zero-day that has also reportedly been addressed. Developers should ensure their systems are updated to protect against potential exploitation.

Ars Technica·Jun 9, 2026

Opening Kapyn…