# Citrix NetScaler ADC/Gateway RCE flaw patched

Published: 2026-10-09 · Severity: routine · Sectors: technology, infrastructure
Canonical: https://vorant.io/reports/4123468e-524c-5d91-a800-d02939ba2407/citrix-netscaler-adc-gateway-rce-flaw-patched

> CERT-FR advises patching a remote code execution and denial-of-service vulnerability in Citrix NetScaler ADC and Gateway.

CERT-FR published an advisory for a vulnerability affecting Citrix NetScaler ADC and NetScaler Gateway, tracked as CVE-2026-107406. The flaw allows a remote attacker to execute arbitrary code and cause a denial of service on affected appliances. Affected versions include NetScaler ADC 13.1-FIPS before 13.1-NDcPP 13.1.37.283, 13.1.x before 13.1-64.29, 14.1-FIPS before 14.1-73.46 FIPS, and 14.1.x before 14.1-73.46, as well as NetScaler Gateway 13.1.x before 13.1-64.29 and 14.1.x before 14.1-73.46.

Citrix has released a security bulletin (CTX697191, dated 09 October 2026) with patched versions. No in-the-wild exploitation is mentioned in the advisory. Given the history of NetScaler ADC/Gateway vulnerabilities being targeted shortly after disclosure (e.g., Citrix Bleed), defenders running affected versions should prioritize patching promptly, especially for internet-facing Gateway deployments used for remote access, and monitor for anomalous activity on these appliances.

No indicators of compromise, threat actor attribution, or malware association are provided in this advisory; it is a vendor patch notification distributed through the French national CERT.

## Mentioned in this report

- Vulnerabilities: CVE-2026-107406

Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-1285

---

This is the free public brief from Vorant Threat Intelligence. When citing, attribute "Vorant" and link https://vorant.io/reports/4123468e-524c-5d91-a800-d02939ba2407/citrix-netscaler-adc-gateway-rce-flaw-patched.
In the app the same report carries its extracted indicators, its detections with Splunk SPL and Microsoft KQL already written, live profiles of the actors and CVEs it names, and the vendor research on the same campaign. Slack alerts fire on the vendors, sectors and countries a reader follows. A new account starts with three days of all of it, no card: https://vorant.io/signup