CVE-2025-22904 is a critical vulnerability that affects Edimax RE11S firmware version 1.11. This vulnerability allows a stack overflow through the pptpUserName parameter in the setWAN function. With a CVSS score of 9.8, it poses a severe risk to organizations utilizing this product. The vulnerability's critical nature means that it can be exploited remotely with minimal complexity, making it imperative for organizations to take immediate action.
Risk to organizations includes potential unauthorized access, which can lead to data breaches and system compromises. Given the high confidentiality, integrity, and availability impact ratings, organizations should prioritize patching immediately. Understanding the exploitation status is crucial as this vulnerability has been analyzed but does not currently have a known exploit.
Organizations using Edimax RE11S must ensure their firmware is updated to the latest version to mitigate this risk. With the potential for exploitation being high, early remediation actions are essential to protect sensitive data and maintain system integrity.
This critical vulnerability highlights the importance of constant vigilance in maintaining firmware and software updates. Organizations must also consider implementing additional security measures to safeguard their networks against potential threats.
Vulnerability Details
The vulnerability discovered in RE11S v1.11 enables a stack overflow via the pptpUserName parameter in the setWAN function. Affected systems are identified under the CPE criteria: cpe:2.3:o:edimax:re11s_firmware:1.11:*:*:*:*:*:*:*.
This vulnerability is classified under CWE-120, and its CVSS score of 9.8 falls into the critical severity category. Published on January 16, 2025, organizations are urged to review their deployments of this firmware to assess vulnerability exposure and take corrective actions promptly.
Technical Analysis
The root cause of this vulnerability lies in improper validation of user input within the setWAN function. Attackers may exploit this stack overflow vulnerability by sending specially crafted inputs to the pptpUserName parameter. The attack vector is through network access, and it requires no prior privileges or user interaction.
The attack complexity is low, allowing even less sophisticated attackers the opportunity to execute an exploit successfully. The impacts on confidentiality, integrity, and availability are high, indicating a significant threat to organizational assets.
Risk & Impact Analysis
The real-world risk associated with CVE-2025-22904 is substantial, particularly for organizations using the affected firmware. The potential for unauthorized access could lead to data breaches, compromise of sensitive information, and operational disruptions. Organizations should assess their exposure, particularly those with critical infrastructure relying on this firmware.
Given the CVSS score of 9.8, the urgency for remediation is critical. Organizations should consider this vulnerability a high priority in their patch management processes to avoid exploitation and mitigate potential impacts.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected version of the Edimax RE11S firmware is version 1.11. Organizations must ensure they are not running this version to avert vulnerabilities.
Mitigation & Remediation
Organizations should prioritize patching the Edimax RE11S firmware to the latest version to mitigate the identified vulnerability. Regular updates and configuration hardening are essential aspects of maintaining security.
For continuous monitoring and detection of vulnerabilities, consider implementing continuous penetration testing services to identify and remedy weaknesses proactively.
Detection Guidance
Organizations should monitor logs for unusual activities related to the setWAN function and track any anomalies associated with the pptpUserName parameter. Behavioral detections should include attempts to exploit this vulnerability.
AppSecure Threat Intelligence Insight
CVE-2025-22904 highlights a significant trend in network vulnerabilities, particularly with stack overflow issues. Security teams should learn from this incident to strengthen their defenses against similar vulnerabilities in the future.
For best practices in network security assessments, organizations can refer to the network security architecture design principles. Additionally, enhancing awareness through a developer security awareness program can help mitigate risks associated with such vulnerabilities.
Implementing a robust penetration testing methodology is also crucial for ongoing assessment of security postures and vulnerability management.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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