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Microsoft Confirms RoguePlanet Defender Zero-Day, Says Patch is in Development

Date: 2026-06-18 15:41:05 Source: Web Source Editor: Developer News

Summary

Microsoft has formally disclosed that it's working to release a patch to address a Defender zero-day

Microsoft has formally disclosed that it's working to release a patch to address a Defender zero-day codenamed RoguePlanet.The vulnerability has now been assigned the CVE identifier CVE-2026-50656 (CVSS score: 7.8), with the tech giant describing it as a privilege escalation flaw."Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender

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