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Critical vulnerabilities disclosed in Citrix NetScaler ADC and Gateway products

On March 23, 2026, Citrix published a security advisory addressing two critical vulnerabilities in NetScaler ADC and NetScaler Gateway affecting multiple versions.

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  • 2026-003: Multiple Vulnerabilities in Citrix NetScaler and Citrix ADC
    CERT-EU Security Advisories
  • Citrix official security bulletin
    support.citrix.com
  • NetScaler ADC and NetScaler Gateway: CVSS (Max): 9.3
    AusCERT - Bulletins
  • CVE-2026-3055: Citrix NetScaler ADC and NetScaler Gateway Out-of-Bounds Read
    Rapid7 Blog
  • Citrix security advisory (AV26-267)
    Canadian Centre for Cyber Security - Alerts