🛡️ **BREAKING: Critical Citrix NetScaler Vulnerabilities Under Active Exploitation — CISA Coordinates Urgent Response**
Published Thursday, September 10, 2026 at 11:08 AM PT BLUF: Citrix NetScaler appliances are under active exploitation for multiple critical vulnerabilities including an authentication bypass (CVE-2026-19490) and additional flaws. CISA has issued an urgent alert coordinating patching across federal agencies and critical infrastructure. Organizations running NetScaler must verify appliance versions, apply patches immediately, and monitor for intrusion indicators. No zero-day involved — patches are available. DETAILS Active Exploitation Confirmed: CVE-2026-19490 (authentication bypass in NetScaler) and CVE-2026-8452 are confirmed under active exploitation in cyber attacks. CISA has incorporated at least six vulnerabilities into a single coordinated alert, indicating a broad attack surface on NetScaler products. ...