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Cyber Security News
cybersecuritynews.com > microsoft-sharepoint-authentication-vulnerability

CISA Adds Microsoft SharePoint Weak Authentication Vulnerability to KEV List

3+ week, 3+ day ago   (313+ words) CISA added a critical Microsoft SharePoint authentication flaw to its KEV catalog after CVE-2026-55040 was confirmed in active exploitation, urging organizations to secure affected on-premises environments. CVE-2026-55040 is a weakness in Microsoft SharePoint’s authentication handling that can allow an unauthenticated…...