Critical Citrix NetScaler Vulnerabilities, Including One Actively Exploited, Require Immediate Patching

Multiple critical vulnerabilities have been identified in Citrix NetScaler ADC and NetScaler Gateway products, with one (CVE-2026-19490) actively being exploited in the wild. These flaws could allow unauthenticated remote attackers to bypass authentication, leading to security restriction bypass and denial of service. Users are urged to apply the latest security updates immediately.