vulnerability MiniPlasma Windows 0-Day Enables SYSTEM Privilege Escalation on Fully Patched Systems 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 impact The Hacker News · May 18, 2026 Critical CVE-2020-17103CVE-2025-62221