CVE-2024-8535: Citrix NetScaler Application Delivery Controller

High severity, CVSS 8.1. EPSS: 0.4% chance of exploitation in the next 30 days.

Authenticated user can access unintended user capabilities in NetScaler ADC and NetScaler Gateway if the appliance must be configured as a Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) with KCDAccount configuration for Kerberos SSO to access backend resources OR the appliance must be configured as an Auth Server (AAA Vserver) with KCDAccount configuration for Kerberos SSO to access backend resources

Affected products

• Citrix NetScaler Application Delivery Controller: from 12.1, before 12.1-55.321 (fixed in 12.1-55.321); from 12.1, before 13.1-55.34 (fixed in 13.1-55.34); from 13.1, before 13.1-37.207 (fixed in 13.1-37.207); from 14.1, before 14.1-29.72 (fixed in 14.1-29.72)
• Citrix NetScaler Gateway: from 12.1, before 13.1-55.34 (fixed in 13.1-55.34); from 14.1, before 14.1-29.72 (fixed in 14.1-29.72)

Published 2024-11-12. Last modified 2026-06-17.