Arbitrary File Read in Citrix NetScaler Console and SDX

CVE-2025-4365

What is CVE-2025-4365?

CVE-2025-4365 is a security vulnerability identified in the Citrix NetScaler Console and NetScaler SDX, which are components of Citrix's application delivery controller and network optimization platform. This vulnerability allows for arbitrary file read access, meaning that an attacker could exploit this flaw to access sensitive files on the affected systems without proper authorization. Such unauthorized access can lead to the exposure of configuration files, credentials, and other confidential information that may reside within the system's filesystem. As NetScaler is widely utilized for its capabilities in load balancing, secure access, and performance optimization for web applications, the impact of this vulnerability could severely disrupt organizations relying on these functions, potentially resulting in data breaches and operational downtime.

Potential impact of CVE-2025-4365

1. Data Exposure: The ability to read arbitrary files may allow attackers to obtain sensitive information, such as user credentials or proprietary data, leading to unauthorized access and further exploitations of the affected systems.

2. Compromised Security: With access to configuration files and system settings, attackers could manipulate the environment for malicious purposes, undermining the overall security posture of the organization using the affected Citrix components.

3. Operational Disruption: The exploitation of this vulnerability could lead to system outages or degraded performance, affecting the availability of services and applications that rely on Citrix NetScaler for optimal operation and user accessibility.

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