CVE-2026-8452
Description
Memory overflow vulnerability NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if the appliance is configured as a Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server
How to fix
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
CISA due date: Aug 29, 2026- citrix netscaler_application_delivery_controller13.1-37.272, 13.1-63.18, 14.1-72.61 or later
- citrix netscaler_gateway13.1-63.18, 14.1-72.61 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| citrix netscaler_application_delivery_controller | v < 13.1-37.272, 13.1 ≤ v < 13.1-63.18, 14.1 ≤ v < 14.1-72.61, 14.1-66.68 | 13.1-37.272, 13.1-63.18, 14.1-72.61 |
| citrix netscaler_gateway | 13.1 ≤ v < 13.1-63.18, 14.1 ≤ v < 14.1-72.61 | 13.1-63.18, 14.1-72.61 |
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