CVE-2026-3055

Insufficient input validation leading to memory overread

Published Mar 23, 2026 CVSS 4.0 · 9.3 Critical EPSS 91.5% KEV · Listed
Description
Insufficient input validation in NetScaler ADC and NetScaler Gateway when configured as a SAML IDP leading to memory overread

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Citrix
Citrix netscaler Application Delivery Controller
Citrix netscaler Gateway
CPEs cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*
Vendors & Products Citrix
Citrix netscaler Application Delivery Controller
Citrix netscaler Gateway
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

kev

{'dateAdded': '2026-03-30T00:00:00+00:00', 'dueDate': '2026-04-02T00:00:00+00:00'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Netscaler
Netscaler adc
Netscaler gateway
Vendors & Products Netscaler
Netscaler adc
Netscaler gateway
Type Values Removed Values Added
Description Insufficient input validation in NetScaler ADC and NetScaler Gateway when configured as a SAML IDP leading to memory overread
Title Insufficient input validation leading to memory overread
Weaknesses CWE-125
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
NetScaler
Published
Updated
Mar 31, 2026, 3:55 AM
Reserved
Feb 23, 2026, 6:00 PM
Status
Analyzed
Published
Mar 23, 2026, 9:17 PM
Modified
Jun 17, 2026, 10:42 AM