Citrix Netscaler Application Delivery Controller — CVE-2026-8452 (Critical)

Date Jun 30, 2026

Type Vendor advisory

Signal Critical vendor advisory

Vendor / Product Citrix · Netscaler Application Delivery Controller

CVE CVE-2026-8452

Critical vendor advisory CVE-2026-8452

Summary

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

Why it matters

This CVE carries a CRITICAL severity rating (CVSS 9.8) in Citrix Netscaler Application Delivery Controller. Patch or mitigate promptly. EPSS percentile: 32%.

Operator check

Review CVE-2026-8452 in your asset inventory. Apply patches per vendor guidance and verify Netscaler Application Delivery Controller is not exposed. CVSS score: 9.8. EPSS probability: 0.4%; percentile: 32%.

Sources

NVD — CVE-2026-8452 Source reference

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.

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