CVE-2025-26063

Comprehensive Technical Analysis of CVE-2025-26063

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2025-26063 CVSS Score: 9.8

The vulnerability in Intelbras RX1500 v2.2.9 and RX3000 v1.0.11 allows unauthenticated attackers to execute arbitrary code by injecting a crafted payload into the ESSID name when creating a network. This vulnerability is classified as critical due to its high CVSS score of 9.8. The severity is attributed to the potential for unauthenticated remote code execution, which can lead to full system compromise.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Unauthenticated Access: The vulnerability can be exploited without requiring any authentication, making it highly accessible to attackers.
• Network Creation: The attack vector involves the creation of a network with a specially crafted ESSID name.

Exploitation Methods:

• Payload Injection: Attackers can inject malicious code into the ESSID name field during the network creation process.
• Remote Code Execution: The injected payload can trigger arbitrary code execution on the affected devices, leading to potential system takeover.

3. Affected Systems and Software Versions

Affected Devices:

• Intelbras RX1500 running firmware version 2.2.9
• Intelbras RX3000 running firmware version 1.0.11

Software Versions:

• RX1500 v2.2.9
• RX3000 v1.0.11

4. Recommended Mitigation Strategies

Immediate Actions:

• Firmware Update: Apply the latest firmware updates provided by Intelbras as soon as they are available.
• Network Segmentation: Isolate affected devices from critical network segments to limit potential damage.
• Monitoring: Implement enhanced monitoring for suspicious network activities, especially around network creation events.

Long-Term Strategies:

• Regular Patching: Establish a regular patching and update schedule for all network devices.
• Access Controls: Implement strict access controls and authentication mechanisms to prevent unauthorized access.
• Security Audits: Conduct regular security audits and vulnerability assessments to identify and mitigate similar issues.

5. Impact on Cybersecurity Landscape

Immediate Impact:

• System Compromise: The vulnerability can lead to full system compromise, allowing attackers to gain control over affected devices.
• Data Breach: Sensitive information stored on or transmitted through the affected devices can be exposed or stolen.

Long-Term Impact:

• Reputation Damage: Organizations using affected devices may suffer reputational damage due to security breaches.
• Increased Attack Surface: The vulnerability highlights the need for robust security measures in IoT and network devices, which are increasingly targeted by attackers.

6. Technical Details for Security Professionals

Vulnerability Details:

• ESSID Injection: The vulnerability is triggered by injecting a crafted payload into the ESSID name field during network creation.
• Code Execution: The injected payload can execute arbitrary code on the affected devices, leading to potential system takeover.

Detection and Response:

• Log Analysis: Analyze network logs for unusual activities related to network creation and ESSID names.
• Intrusion Detection: Implement intrusion detection systems (IDS) to monitor for suspicious network traffic patterns.
• Incident Response: Develop an incident response plan specific to this vulnerability, including steps for containment, eradication, and recovery.

References:

• Intelbras RX1500 ChangeLog
• Intelbras RX3000 ChangeLog
• Full Disclosure Mailing List

Conclusion

CVE-2025-26063 represents a critical vulnerability in Intelbras RX1500 and RX3000 devices, allowing unauthenticated attackers to execute arbitrary code via ESSID name injection. Organizations must prioritize firmware updates, implement robust security measures, and conduct regular audits to mitigate the risk associated with this vulnerability. The cybersecurity landscape demands vigilance and proactive measures to protect against such high-severity threats.