CVE-2026-88774
Received Received - Intake

Buffer Overflow in Citrix NetScaler ADC and Gateway

Publication date: 2026-09-27

Last updated on: 2026-09-27

Assigner: NetScaler

Description
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 leading to a feature policy bypass due to improper HTTP URL based expression usage.

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Meta Information

Published
2026-09-27
Last Modified
2026-09-27
Generated
2026-09-27
AI Q&A
2026-09-27
EPSS Evaluated
N/A
NVD
CVE-2026-88774
EUVD
EUVD-2026-87960

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
citrix netscaler_adc to 13.1.37.279 (exc)
citrix netscaler_gateway to 13.1-64.23 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability affects Citrix NetScaler ADC and Gateway products. It allows a feature policy bypass due to improper use of HTTP URL-based expressions. Affected versions include ADC before 14.1-73.37, 13.1-64.23, and their FIPS variants, as well as Gateway before 13.1-64.23.

Impact Analysis

An attacker could exploit this to bypass security policies, potentially gaining unauthorized access to sensitive resources or data. The impact includes unauthorized actions, data exposure, or further network compromise depending on the environment.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR, HIPAA, or other regulations by enabling unauthorized access to personal or health data. Organizations may face penalties or legal consequences if exploited.

Mitigation Strategies

Update Citrix NetScaler ADC and Gateway to versions 14.1-73.37 or later, 13.1-64.23 or later, or the specified FIPS versions to address the feature policy bypass vulnerability.

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