KNOWN EXPLOITED VULNERABILITY DOSSIER
CVE-2026-19490
Citrix · NetScaler
Citrix NetScaler ADC and NetScaler Gateway contain an authentication-bypass vulnerability involving an alternate path or channel. When the NetScaler appliance is configured as an AAA virtual server or as a Gateway (SSL VPN, ICA Proxy, CVPN, or RDP Proxy), an unauthenticated remote threat actor may be able to bypass authentication.
Correlated Federal Court Cases & Exploitation Context (0)
No federal court indictment in the current archive directly cites CVE-2026-19490. This record tracks its addition to the CISA Known Exploited Vulnerabilities (KEV) catalog on 2026-09-09.
Associated Government Advisories
Tracked under CISA Known Exploited Vulnerabilities Binding Operational Directive 22-01 for federal civilian agency remediation.