
Citrix pushes urgent NetScaler patches to close two critical flaws
Citrix is urging admins to urgently patch NetScaler ADC and Gateway to fix two high-severity flaws (CVE-2026-19490 auth bypass and CVE-2026-19489 DoS via SIP ALG). Upgrades to specific builds (14.1-73.32+, 13.1-63.21+, including FIPS/NDcPP variants) are advised; admins should review the security bulletin, assess exposure, and apply updates promptly, as past NetScaler CVEs have been exploited in the wild and millions of instances remain exposed.













