CVE-2025-5349 is a high-severity vulnerability identified in Citrix's NetScaler Application Delivery Controller (ADC) and NetScaler Gateway. This vulnerability allows improper access control on the NetScaler Management Interface, enabling unauthorized users to potentially gain access to sensitive configurations and management functions. The CVSS score for this vulnerability is 8.7, indicating a significant threat that organizations must address promptly.
Risk to organizations includes potential unauthorized access to critical systems, which could be exploited by attackers to manipulate settings, access sensitive data, or launch further attacks within the network. With the attack vector identified as adjacent network, the potential for exploitation increases, especially in environments where network segmentation is not adequately enforced.
Currently, there is a confirmed exploit available for CVE-2025-5349, which heightens the urgency for defenders to implement mitigations. Organizations should prioritize patching immediately to prevent unauthorized access, given the high-impact nature of this vulnerability.
The vulnerability was published on June 17, 2025, and its implications are critical for organizations utilizing Citrix technologies. Immediate action is required to safeguard against potential exploitation.
Vulnerability Details
The vulnerability is classified as improper access control on the NetScaler Management Interface in both NetScaler ADC and NetScaler Gateway. Officially documented, this vulnerability has been assigned a CVSS score of 8.7, which classifies it as high severity due to its high potential impact on confidentiality, integrity, and availability.
Affected products include both the NetScaler Application Delivery Controller and NetScaler Gateway, specifically targeting configurations that are vulnerable within specific version ranges. The CWE classification for this vulnerability is CWE-1284, indicating improper access control issues.
Technical Analysis
The root cause of CVE-2025-5349 lies in the implementation of access control mechanisms within the NetScaler Management Interface. Attackers may leverage this vulnerability through an adjacent network, requiring no privileges or user interaction to exploit.
The attack complexity is rated as low, making it easier for attackers to exploit this vulnerability. The potential impacts are significant, with high risks to confidentiality, integrity, and availability of the affected systems.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2025-5349 is substantial, as attackers exploiting this vulnerability could gain unauthorized access to critical management functions. The blast radius potential is significant given the interconnected nature of network resources, posing a threat to the overall security posture of affected organizations.
Organizations must assess their exposure to this vulnerability, especially if they operate Citrix solutions in environments lacking robust segmentation. With the CVSS score indicating a high severity and the active availability of exploits, an urgent response is warranted.
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
CVE-2025-5349 affects specific versions of the NetScaler Application Delivery Controller and NetScaler Gateway. Affected versions include:
• NetScaler ADC versions 12.1 prior to 12.1-55.328, 13.1 prior to 13.1-37.235, and 14.1 prior to 14.1-43.56.
• NetScaler Gateway versions 13.1 prior to 13.1-58.32 and 14.1 prior to 14.1-43.56.
Mitigation & Remediation
Organizations must prioritize applying patches provided by Citrix to remediate CVE-2025-5349. Ensure that systems are updated to the latest versions to eliminate vulnerabilities. If immediate patching is not feasible, consider implementing alternative security measures such as network segmentation to restrict access to the vulnerable components.
For comprehensive security validation, organizations should utilize penetration testing services to identify any remaining weaknesses post-remediation.
Detection Guidance
Monitoring for unusual access patterns and changes in configurations within the NetScaler Management Interface is crucial. Security teams should look for log indicators that may suggest unauthorized access attempts, such as failed login attempts and unexpected changes.
AppSecure Threat Intelligence Insight
The existence of CVE-2025-5349 highlights ongoing challenges in managing access control within critical infrastructure. Security teams must remain vigilant and proactive in addressing vulnerabilities of this nature to prevent potential breaches.
To stay informed on emerging threats and effective mitigation strategies, organizations can benefit from engaging in a comprehensive vulnerability management program and consider adopting frameworks for continuous monitoring and assessment.
Additionally, organizations should invest in penetration testing methodology to effectively evaluate their security posture and identify areas for improvement.
In conclusion, CVE-2025-5349 serves as a critical reminder of the need for robust access control mechanisms within networked environments. Organizations must prioritize immediate remediation efforts to safeguard their systems.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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