CVE-2026-19490

criticalcovered by 3 sourcesfirst seen 2026-08-19

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.

CSIRTS triage

What: Multiple critical vulnerabilities in NetScaler ADC and NetScaler Gateway allow remote code execution.
Who is affected: Deployments of Citrix NetScaler ADC and NetScaler Gateway are affected.
Urgency: Immediate remediation required; critical severity and active advisory from vendor.
Action: Apply Citrix security updates for NetScaler ADC and NetScaler Gateway immediately.

AI-assisted analysis generated from the source advisory — verify against the original.

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Advisory coverage (3)

unknownCitrix security advisory (AV26-833)cccs · 2026-08-19
critical2026-010: Critical Vulnerabilities in Citrix NetScaler ADC and NetScaler Gatewaycert-eu · 2026-08-19
unknownCVE-2026-19490: Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: from 14.1 throug…nvd · 2026-08-19

External references

NVD record for CVE-2026-19490

CVE.org record

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