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RedSun exploit gives attackers SYSTEM access by abusing Microsoft Defender on fully patched Windows PCs

VPN Central [Unofficial] April 19, 2026
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A newly disclosed Microsoft Defender exploit called RedSun can let a low-privileged attacker gain full SYSTEM access on fully patched Windows 10, Windows 11, and Windows Server systems. Researchers say the technique abuses Defender’s privileged file-handling path and works even after Microsoft patched the earlier BlueHammer flaw this month. RedSun is not the same bug […] The post RedSun exploit gives attackers SYSTEM access by abusing Microsoft Defender on fully patched Windows PCs appeared first on VPN Central.

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