CVE-2026-88777
Received Received - Intake

Memory Overflow in Citrix NetScaler ADC and Gateway

Publication date: 2026-09-27

Last updated on: 2026-09-27

Assigner: NetScaler

Description
Memory overflow vulnerability 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 unpredictable or erroneous behavior or Denial of Service

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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-2026-88777
EUVD
EUVD-2026-87972

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 is a memory overflow vulnerability in Citrix NetScaler ADC and Gateway products. It allows attackers to cause unpredictable behavior or Denial of Service by exploiting memory handling issues in affected versions.

Impact Analysis

The vulnerability can lead to system crashes, service disruptions, or unauthorized access to sensitive data. It may cause network outages or allow attackers to execute arbitrary code on vulnerable systems.

Compliance Impact

The provided CVE data does not specify direct impacts on compliance with GDPR, HIPAA, or other standards. However, memory overflow vulnerabilities leading to Denial of Service or unpredictable behavior could disrupt data processing or access controls, potentially violating availability requirements in GDPR or HIPAA.

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 memory overflow vulnerability.

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