Chaotic Eclipse, the security researcher behind the recently disclosed Windows flaws, YellowKey and GreenPlasma, has released a proof-of-concept (PoC) for a Windows privilege escalation zero-day flaw that grants attackers SYSTEM privileges on fully patched Windows systems.
Codenamed MiniPlasma, the vulnerability impacts "cldflt.sys," which refers to the Windows Cloud Files Mini Filter Driver,

source https://thehackernews.com/2026/05/miniplasma-windows-0-day-enables-system.html

source https://thehackernews.com/2026/05/miniplasma-windows-0-day-enables-system.html