Memory Overflow Vulnerability in Citrix NetScaler ADC and Gateway
CVE-2026-111342

8.7HIGH

Key Information:

Vendor

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

What is CVE-2026-111342?

A memory overflow vulnerability has been identified in the LDAP authentication mechanism within Citrix NetScaler ADC and Citrix NetScaler Gateway. This flaw may result in unpredictable behavior or potentially facilitate a denial of service attack. Organizations utilizing these products should assess their exposure and apply necessary security measures to mitigate risks associated with this vulnerability.

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

.