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

Microsoft has officially acknowledged a zero-day vulnerability in Microsoft Defender, designated CVE-2026-50656 with a CVSS score of 7.8. The flaw, codenamed RoguePlanet, is a privilege escalation vulnerability affecting the Microsoft Malware Protection Engine, and Microsoft is actively developing a patch to address it.

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

Originally published at thehackernews.com

#Cybersecurity #Malware #Microsoft Defender #Privilege Escalation #Vulnerabilities #Zero-Day Vulnerability

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

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