Memory Overflow Vulnerability in Citrix NetScaler ADC and Gateway
CVE-2026-111341

8.7HIGH

Key Information:

Vendor

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

What is CVE-2026-111341?

A memory overflow vulnerability exists in the client-certificate authentication process within Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue can lead to unpredictable behavior or even cause a Denial of Service, impacting the performance and availability of these critical services. Organizations using these products should be aware of this vulnerability to ensure robust cybersecurity measures are in place.

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:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.