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Secure Software2 min readJuly 17, 2026

CISA Adds Exploited SharePoint RCE Zero-Day CVE-2026-58644 to KEV

A critical remote code execution vulnerability in SharePoint (CVE-2026-58644) is actively being exploited in the wild and has been added to CISA's Known Exploited Vulnerabilities catalog, meaning attackers are using it to compromise systems. Organizations

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