🛡️ **CVE-2026-58644: Microsoft SharePoint RCE Added to CISA KEV — Active Exploitation Confirmed**
Published Tuesday, July 21, 2026 at 08:52 PM PT BLUF: CISA has added CVE-2026-58644, a remote code execution vulnerability in Microsoft SharePoint, to its Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. Any organization running affected SharePoint instances should assume compromise risk is elevated and prioritize assessment and patching immediately. DETAILS • Vulnerability Confirmed: CVE-2026-58644 is a SharePoint RCE flaw. CISA KEV addition indicates exploitation has been observed beyond proof-of-concept. ...