CERT-EU 2026-08-19

2026-010: Critical Vulnerabilities in Citrix NetScaler ADC and NetScaler Gateway

Machine-generated analysis · WAYSCloud LLM

Citrix NetScaler ADC and NetScaler Gateway have multiple vulnerabilities. CERT-EU recommends updating them promptly.

Context

The advisory concerns Citrix NetScaler ADC (formerly Citrix ADC) and NetScaler Gateway (formerly Citrix Gateway). It reports multiple critical vulnerabilities in these products. CERT-EU advises applying updates to the affected devices as soon as possible.

Operator considerations

Check: Inventory all NetScaler ADC and NetScaler Gateway instances.
Patch: Apply the Citrix security updates released for the reported vulnerabilities.

From Computer Emergency Response Team for the EU institutions ↗

On 19 August 2026, Citrix published a security advisory addressing multiple critical vulnerabilities in NetScaler ADC (formerly Citrix ADC) and NetScaler Gateway (formerly Citrix Gateway).

CERT-EU recommends updating affected devices as soon as possible.

Read the full advisory on CERT-EU →