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.

Project Subscriptions

Vendors Products
Netscaler Adc Subscribe
Netscaler Application Delivery Controller Subscribe
Netscaler Gateway Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 29 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Mon, 28 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
First Time appeared Citrix netscaler Application Delivery Controller
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 netscaler Application Delivery Controller
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}


Mon, 28 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Citrix
Citrix netscaler Adc
Citrix netscaler Gateway
Vendors & Products Citrix
Citrix netscaler Adc
Citrix netscaler Gateway

Sun, 27 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
Description 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.
Title TCP Initial Sequence Number (ISN) prediction
Weaknesses CWE-342
References
Metrics cvssV4_0

{'score': 8.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:L/SA:L'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: NetScaler

Published:

Updated: 2026-09-29T16:35:06.769Z

Reserved: 2026-09-10T07:14:57.370Z

Link: CVE-2026-88778

cve-icon Vulnrichment

Updated: 2026-09-29T16:34:35.685Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-27T17:16:57.110

Modified: 2026-09-29T17:17:12.020

Link: CVE-2026-88778

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-28T16:24:11Z

Weaknesses