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Sead Fadilpašić

Critical Citrix NetScaler flaw gets official patch warning from CISA

Computer Hacked, System Error, Virus, Cyber attack, Malware Concept. Danger Symbol.

  • CISA adds Citrix CVE‑2026‑3055 to Known Exploited Vulnerabilities catalog, confirming in‑the‑wild abuse
  • Critical input validation flaw in NetScaler ADC/Gateway SAML IDP enables memory overread and data access
  • Exploitation observed since March 27; ~30K NetScaler and 2K Gateway instances exposed, agencies must patch by April 2
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