Is CVE-2026-107406 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-107406 being exploited in the wild.

How severe is CVE-2026-107406?

Informational severity, published 8 October 2026.

Which products and versions are affected?

Citrix NetScaler ADC before 14.1-73.37; 14.1-73.37 to 14.1-73.41 (SAML IdP only); before 13.1-64.23; 13.1-64.23 to 13.1-64.28 (SAML IdP only); Citrix NetScaler ADC FIPS before 14.1-73.37 FIPS; 14.1-73.37 FIPS to 14.1-73.41 FIPS (SAML IdP only); before 13.1-NDcPP 13.1-37.279; 13.1-37.279 to 13.1-37.282 (SAML IdP only); Citrix NetScaler Gateway before 14.1-73.37; 14.1-73.37 to 14.1-73.41 (SAML IdP only); before 13.1-64.23; 13.1-64.23 to 13.1-64.28 (SAML IdP only).

Is there a fix for CVE-2026-107406?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-107406 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-107406?

Check whether you run Citrix NetScaler ADC, Citrix NetScaler ADC FIPS or Citrix NetScaler Gateway at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-107406: Citrix NetScaler ADC memory overflow in SAML

CVE-2026-107406 · Severity: info · Published 2026-10-08

NetScaler ADC and Gateway are application delivery controllers used to manage traffic and security for enterprise networks. A memory overflow vulnerability in SAML authentication can allow attackers to execute arbitrary code or crash the service, potentially disrupting network services or gaining control of the appliance.

Technologies: Citrix NetScaler ADC, Citrix NetScaler Gateway. Vendors: Citrix.

Quick answers

Is CVE-2026-107406 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-107406 being exploited in the wild.
How severe is CVE-2026-107406?: Informational severity, published 8 October 2026.
Which products and versions are affected?: Citrix NetScaler ADC before 14.1-73.37; 14.1-73.37 to 14.1-73.41 (SAML IdP only); before 13.1-64.23; 13.1-64.23 to 13.1-64.28 (SAML IdP only); Citrix NetScaler ADC FIPS before 14.1-73.37 FIPS; 14.1-73.37 FIPS to 14.1-73.41 FIPS (SAML IdP only); before 13.1-NDcPP 13.1-37.279; 13.1-37.279 to 13.1-37.282 (SAML IdP only); Citrix NetScaler Gateway before 14.1-73.37; 14.1-73.37 to 14.1-73.41 (SAML IdP only); before 13.1-64.23; 13.1-64.23 to 13.1-64.28 (SAML IdP only).
Is there a fix for CVE-2026-107406?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-107406 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-107406?: Check whether you run Citrix NetScaler ADC, Citrix NetScaler ADC FIPS or Citrix NetScaler Gateway at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A memory overflow vulnerability exists in the SAML authentication processing of NetScaler ADC and Gateway. The vulnerability affects systems configured as a SAML Service Provider (SP) or SAML Identity Provider (IdP) across multiple versions. Exploitation can result in remote code execution or denial of service depending on the configuration and attack method.

Affected products

Citrix NetScaler ADC before 14.1-73.37; 14.1-73.37 to 14.1-73.41 (SAML IdP only); before 13.1-64.23; 13.1-64.23 to 13.1-64.28 (SAML IdP only)
Citrix NetScaler Gateway before 14.1-73.37; 14.1-73.37 to 14.1-73.41 (SAML IdP only); before 13.1-64.23; 13.1-64.23 to 13.1-64.28 (SAML IdP only)
Citrix NetScaler ADC FIPS before 14.1-73.37 FIPS; 14.1-73.37 FIPS to 14.1-73.41 FIPS (SAML IdP only); before 13.1-NDcPP 13.1-37.279; 13.1-37.279 to 13.1-37.282 (SAML IdP only)

Timeline

2026-10-08: disclosed

References

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