CVE-2026-19490

NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2026-19490

CVSS 9.3 critical · NetScaler ADC · published 2026-08-19

Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21.

NVD · CVE.org

Coverage 2 sources

1. 2026-08-21 Help Net Security critical Citrix urges customers to fix critical NetScaler authentication bypass (CVE-2026-19490)

   Citrix patches critical authentication bypass in NetScaler ADC and Gateway.

2. 2026-09-09 CISA Cybersecurity Advisories high CISA Adds Four Known Exploited Vulnerabilities to Catalog

   CISA added four new vulnerabilities to its Known Exploited Vulnerabilities Catalog.

Mentioned with

CVE-2025-25249 CVE-2026-20079 CVE-2026-87491

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