SharePoint RCE CVE-2026-45659 Added to CISA KEV After Active Exploitation

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has flagged a high-severity remote code execution (RCE) flaw in Microsoft SharePoint Server, adding it to its Known Exploited Vulnerabilities catalog. This means that the vulnerability, identified as CVE-2026-45659, is being actively exploited in the wild, posing a serious risk to organizations relying on SharePoint for their data management. With a CVSS score of 8.8, it's a critical issue that demands immediate attention and patching to prevent potential cyber attacks. This move by CISA underscores the urgency for organizations to secure their systems against this exploit.