Citrix releases another security update for critical Netscaler vulnerability

Citrix has released another security update for its Netscaler ADC and Gateway products to patch a critical memory overflow vulnerability (CVE-2026-107406) that can allow code execution or denial of service, following an earlier fix for a similar critical vulnerability. Administrators are urged to update immediately as the flaws affect devices with SAML functions enabled and have high-severity ratings.

This Wire brief sits within Fusion42's coverage of Cybersecurity and Cloud Infrastructure, and 3 sources have reported it between 5 Oct 2026 and 9 Oct 2026.