Citrix security advisory (AV26-833) – Update 1

Cybersecurity alert from the Canadian Centre for Cyber Security

Serial Number: AV26-833
Date: August 19, 2026
Updated: September 9, 2026

As of August 19, 2026, Citrix is affected by vulnerabilities in the following products:

  • NetScaler ADC and NetScaler
    • Version 13.1 prior to 13.1-63.21
    • Version 14.1 prior to 14.1-73.32
  • NetScaler ADC FIPS
  • NetScaler ADC FIPS and NDcPP

The Cyber Centre encourages users and administrators to review the provided web links and apply any necessary updates as they become available.

Update 1

On September 9, 2026, Cybersecurity and Infrastructure Security Agency (CISA) added CVE-2026-19490 to their Known Exploited Vulnerabilities (KEV) Database.



Courtesy of Canadian Centre for Cyber Security

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