CVE-2026-107406

Critical

Description

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

SeverityCritical
CVSS9.5
Exploit probability—
ProductGateway
PublishedOct 8, 2026
First seenOct 8, 2026

How to fix

Update
  • NetScaler Gateway14.1-73.46, 13.1-64.29 or later
  • NetScaler ADC14.1-73.46, 13.1-64.29, 14.1-73.46 FIPS, 13.1.37.283 FIPS or later

Affected products

ProductAffected versionsFixed in
NetScaler Gatewayv < 14.1-73.46, v < 13.1-64.2914.1-73.46, 13.1-64.29
NetScaler ADCv < 14.1-73.46, v < 13.1-64.29, v < 14.1-73.46 FIPS, v < 13.1.37.283 FIPS14.1-73.46, 13.1-64.29, 14.1-73.46 FIPS, 13.1.37.283 FIPS

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.