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CVE-2026-3055: Citrix NetScaler

EPSS4.0%No. 1461 of 1739 in KEV
CVE year2026listed the same year
Same vendor in KEV27
Same product6
FieldValue
VendorCitrix
ProductNetScaler
NameCitrix NetScaler Out-of-Bounds Read Vulnerability
Added to KEV2026-03-30
US federal due date2026-04-02
Ransomware useUnknown
CWECWE-125

CISA 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.

Other entries for this product

CVEVendor / productAddedEPSSRansomware
CVE-2026-88779Citrix NetScaler2026-10-040.5%Unknown
CVE-2026-88772Citrix NetScaler2026-09-271.3%Unknown
CVE-2026-88771Citrix NetScaler2026-09-271.0%Unknown
CVE-2026-19490Citrix NetScaler2026-09-0923.1%Unknown
CVE-2025-7775Citrix NetScaler2025-08-2620.2%Unknown

NVD — CVE-2026-3055

Data from CISA's Known Exploited Vulnerabilities (KEV) catalog. EPSS is FIRST's estimated probability of exploitation activity in the next 30 days, refreshed weekly. Always follow the vendor's official guidance.
About this page

A Citrix NetScaler vulnerability added to CISA's Known Exploited Vulnerabilities catalog on 2026-03-30.