Citrix Patches Critical NetScaler Flaw That Could Enable RCE in SAML Deployments
Summary
Citrix has released patches for a critical security flaw affecting NetScaler ADC and NetScaler Gateway. The vulnerability, identified as CVE-2026-107406, is a memory overflow that could lead to remote code execution or denial-of-service under specific configurations.
IFF Assessment
This vulnerability allows for remote code execution and denial-of-service, posing a significant risk to organizations using affected Citrix products.
Severity
The CVSS score is estimated to be 9.8 (Critical) due to the potential for Remote Code Execution (RCE) and Denial of Service (DoS) with an easily exploitable attack vector, impacting the confidentiality, integrity, and availability of systems.
Defender Context
Defenders must prioritize patching Citrix NetScaler ADC and NetScaler Gateway to mitigate this critical vulnerability. The potential for RCE and DoS makes this a high-priority threat, requiring immediate attention to prevent exploitation.