CVE-2026-8451

HIGH CVSS 4.0: 8.8 EPSS 15.7%
Updated Jul 01, 2026
Citrix
Parameter Value
CVSS 8.8 (HIGH)
Affected Versions 13.1 — 14.1-72.61
Fixed In 13.1-37.272
Type CWE-125 (Out-of-bounds Read)
Vendor Citrix
Public PoC No

Insufficient input validation in NetScaler ADC and NetScaler Gateway leading to memory overread if NetScaler ADC or NetScaler Gateway is configured as a SAML IDP

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
Low
Partial data modification
Availability
High
Complete denial of service

CVSS Vector v4.0

Weakness Type (CWE)

Vulnerable Products 7

Configuration From (including) Up to (excluding)
Citrix Netscaler_Application_Delivery_Controller
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*
13.1-37.272
Citrix Netscaler_Application_Delivery_Controller
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*
13.1-37.272
Citrix Netscaler_Application_Delivery_Controller
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*
13.1 13.1-63.18
Citrix Netscaler_Application_Delivery_Controller
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*
14.1 14.1-72.61
Citrix Netscaler_Application_Delivery_Controller
cpe:2.3:a:citrix:netscaler_application_delivery_controller:14.1-66.68:*:*:*:fips:*:*:*
Citrix Netscaler_Gateway
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*
13.1 13.1-63.18
Citrix Netscaler_Gateway
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*
14.1 14.1-72.61