Citrix NetScaler Out-of-Bounds Read Vulnerability

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• NewsExploited · CISA KEVCitrix · NetScaler

  Citrix NetScaler Out-of-Bounds Read Vulnerability

  CVE-2026-3055

  Citrix NetScaler ADC (formerly Citrix ADC), NetScaler Gateway (formerly Citrix Gateway) and NetScaler ADC FIPS and NDcPP contain an out-of-bounds reads vulnerability when configured as a SAML IDP leading to memory overread.

  CISA's required action · due 2 Apr 2026 for U.S. federal civilian agencies

  Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

  Cited by CISA: support.citrix.com · nvd.nist.gov

  Added to KEV 30 Mar 2026 · Source checked 4 Nov 2026, 16:35 UTC · CISA KEV entry

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