CVE-2024-8534: Citrix NetScaler Application Delivery Controller

High severity, CVSS 8.1. EPSS: 0.6% chance of exploitation in the next 30 days.

Memory safety vulnerability leading to memory corruption and Denial of Service in NetScaler ADC and Gateway if the appliance must be configured as a Gateway (VPN Vserver) with RDP Feature enabled OR the appliance must be configured as a Gateway (VPN Vserver) and RDP Proxy Server Profile is created and set to Gateway (VPN Vserver) OR the appliance must be configured as a Auth Server (AAA Vserver) with RDP Feature enabled

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.