CVE-2026-107406: NetScaler ADC

Critical severity, CVSS 9.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Memory overflow vulnerability leading to Remote Code Execution or Denial of Service Vulnerability in NetScaler ADC. NetScaler ADC or NetScaler Gateway must be configured as a SAML SP or SAML IdP, subject to the following version-specific requirements:   * For the following versions: Applicable only when configured as a SAML IdP: * NetScaler ADC and NetScaler Gateway between 14.1-73.37 and 14.1-73.41, inclusive * NetScaler ADC 14.1-FIPS between 14.1-73.37 FIPS and 14.1-73.41 FIPS, inclusive * NetScaler ADC and NetScaler Gateway between 13.1-64.23 and 13.1-64.28, inclusive * NetScaler ADC 13.1-FIPS between 13.1-NDcPP 13.1-37.279 and 13.1- 37.282, inclusive   For the following versions: Applicable only when configured as a SAML SP or SAML IdP: * NetScaler ADC and NetScaler Gateway before 14.1-73.37  * NetScaler ADC 14.1-FIPS before 14.1-73.37 FIPS  * NetScaler ADC and NetScaler Gateway before 13.1-64.23 * NetScaler ADC 13.1-FIPS before13.1-NDcPP 13.1-37.279

Affected products

• NetScaler ADC: before 14.1-73.46 (fixed in 14.1-73.46); before 13.1-64.29 (fixed in 13.1-64.29); before 14.1-73.46 FIPS (fixed in 14.1-73.46 FIPS); before 13.1.37.283 FIPS (fixed in 13.1.37.283 FIPS)
• NetScaler Gateway: before 14.1-73.46 (fixed in 14.1-73.46); before 13.1-64.29 (fixed in 13.1-64.29)

Published 2026-10-08. Last modified 2026-10-10.