CISA Warns of Actively Exploited Microsoft SharePoint Vulnerability
CISA has added a high-severity Microsoft SharePoint vulnerability, CVE-2026-45659, to its Known Exploited Vulnerabilities catalog. The agency is urging organizations to patch their systems immediately to prevent remote code execution attacks.
Why it matters
Active exploitation of enterprise software poses a significant risk to critical business data and internal network security.
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a high-severity Microsoft SharePoint Server vulnerability to its Known Exploited Vulnerabilities (KEV) catalog after confirming that the flaw is being actively exploited in the wild, prompting renewed warnings for organizations running on-premises SharePoint environments.
The report is based on official government cybersecurity advisories and factual technical data.
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