CVE-2026-3055 — Actively Exploited: NetScaler (Citrix)
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.
| CVE ID | CVE-2026-3055 |
|---|---|
| Vendor | Citrix |
| Product | NetScaler |
| Vulnerability name | Citrix NetScaler Out-of-Bounds Read Vulnerability |
| Date added | 2026-03-30 |
| Remediation due | 2026-04-02 |
| Known ransomware use | Unknown |
| Required action | Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. |
| Description | 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. |
| Source | CISA Known Exploited Vulnerabilities |
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