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Home - Vulnerability NotesPrint
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CERT-In Vulnerability Note CIVN-2026-0354
Multiple Vulnerabilities in Citrix NetScaler ADC and NetScaler Gateway

Original Issue Date:July 03, 2026

Severity Rating: HIGH

Software Affected

  • NetScaler ADC and NetScaler Gateway releases prior to 14.1-72.61
  • NetScaler ADC and NetScaler Gateway releases prior to 13.1-63.18
  • NetScaler ADC FIPS releases prior to 14.1-72.61-FIPS
  • NetScaler ADC FIPS and NDcPP releases prior to 13.1-37.272-FIPS/NDcPP

Overview

Multiple vulnerabilities have been reported in NetScaler ADC (formerly Citrix ADC) and NetScaler Gateway (formerly Citrix Gateway), which could allow an unauthenticated remote attacker to disclose sensitive information, read arbitrary files, or cause denial of service on the affected systems.

Target Audience:
All end-user organizations and individuals using Citrix NetScaler ADC and NetScaler Gateway.

Risk Assessment:
Risk of information disclosure, arbitrary file read, and denial of service on the affected systems.

Impact Assessment:
Disclosure of sensitive information, arbitrary file read, denial of service, and compromise of system availability.

Description

NetScaler ADC and NetScaler Gateway are application delivery controller (ADC) and secure remote access solutions used to provide load balancing, application delivery, and VPN services for enterprise environments.

Multiple vulnerabilities have been identified in NetScaler ADC and NetScaler Gateway due to memory handling issues, insufficient input validation, improper access control, and implementation flaws in various service components. Depending on the appliance configuration, these vulnerabilities may lead to memory over-read, memory overflow, arbitrary file read, or denial of service.

Successful exploitation of these vulnerabilities could allow an unauthenticated remote attacker to disclose sensitive information from memory, read arbitrary files, or cause denial of service and unpredictable behavior on the affected appliance.

Solution

Apply appropriate security updates and mitigations as mentioned in the vendor advisory:
https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696604

Vendor Information

Citrix
https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696604

References

 
https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696604

CVE Name
CVE-2026-8451
CVE-2026-8452
CVE-2026-8655
CVE-2026-10816
CVE-2026-10817
CVE-2026-13474

Disclaimer

The information provided herein is on "as is" basis, without warranty of any kind.

Contact Information

Email: info@cert-in.org.in
Phone: +91-11-22902657

Postal address

Indian Computer Emergency Response Team (CERT-In)
Ministry of Electronics and Information Technology
Government of India
Electronics Niketan
6, CGO Complex, Lodhi Road,
New Delhi - 110 003
India

 
Indian Computer Emergency Response Team - CERT-In, Ministry of Electronics and Information Technology, Government of India.
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