Microsoft June 2026 Patch Day: Critical Windows Kernel Vulnerability and New RoguePlanet Zero-Day (heise.de)

• Microsoft patches critical vulnerabilities in Windows, Azure, M365, and Office on June Patch Day.
• Researcher Nightmare Eclipse discloses RoguePlanet zero-day for Windows 10/11 post-patch.
• BitLocker zero-days YellowKey and GreenPlasma, plus RedSun flaw, are fixed.

"Microsoft's June Patch Day fixes numerous critical vulnerabilities in Windows, Azure, and Office. After the patch, a security researcher disclosed a new zero-day named RoguePlanet affecting fully patched Windows 10/11 via Defender. BitLocker zero-days (YellowKey, GreenPlasma) and the RedSun flaw were also addressed. Three critical flaws in Windows Kernel, HTTP.sys, and DHCP Client Service allow remote code execution."