CVE-2026-88778

HIGH CVSS 4.0: 8.8 EPSS 0.69%
Updated Sep 29, 2026
Citrix
Parameter Value
CVSS 8.8 (HIGH)
Affected Versions 13.1 — 14.1-73.37
Fixed In 13.1-64.23
Type CWE-342
Vendor Citrix
Public PoC No

Predictable exact value from previous values vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23.

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
Low
Partial data leak
Integrity
High
Complete 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:*:*:*:*:-:*:*:*
13.1 13.1-64.23
Citrix Netscaler_Application_Delivery_Controller
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*
13.1 13.1.37.279
Citrix Netscaler_Application_Delivery_Controller
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*
13.1 13.1.37.279
Citrix Netscaler_Application_Delivery_Controller
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*
14.1 14.1-73.37
Citrix Netscaler_Application_Delivery_Controller
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*
14.1-66.68 <= 14.1-73.37
Citrix Netscaler_Gateway
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*
13.1 13.1-64.23
Citrix Netscaler_Gateway
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*
14.1 14.1-73.37