Memory Overflow Vulnerability in Citrix NetScaler ADC and Gateway
CVE-2026-111334

9.3CRITICAL

Key Information:

Vendor

Citrix
Status
Netscaler Adc
Netscaler Gateway
Vendor
CVE Published:
13 November 2026

What is CVE-2026-111334?

A memory overflow vulnerability exists in the Endpoint Analysis (EPA/EPAS) component of Citrix NetScaler ADC and Citrix NetScaler Gateway. This flaw can result in unpredictable and erratic system behaviors, potentially leading to a Denial of Service condition. Organizations utilizing these Citrix products should apply security patches and monitor for any anomalous activities to ensure the integrity and availability of their systems.

Affected Version(s)

NetScaler ADC 0 < 14.1-73.57

NetScaler ADC 0 < 13.1-64.39

NetScaler ADC 0 < 14.1-73.58 FIPS

References

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

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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