Memory Overflow Vulnerability in Citrix NetScaler ADC and Gateway
CVE-2026-107415

9.3CRITICAL

Key Information:

Vendor

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

What is CVE-2026-107415?

A memory overflow vulnerability exists in the Email OTP authentication mechanism of Citrix NetScaler ADC and Citrix NetScaler Gateway, potentially resulting in unpredictable behavior or Denial of Service conditions. Malicious actors could exploit this flaw to disrupt the normal operation of the affected systems, emphasizing the importance of timely updates and security measures.

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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