CVE-2025-26062

Comprehensive Technical Analysis of CVE-2025-26062

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2025-26062 CVSS Score: 9.8

The CVSS score of 9.8 indicates a critical vulnerability. This high score is due to the potential for unauthenticated attackers to access sensitive information, which can lead to significant security breaches. The vulnerability involves an access control issue in Intelbras RX1500 v2.2.9 and RX3000 v1.0.11 routers, allowing unauthorized access to the router's settings file.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Network Access: Attackers can exploit this vulnerability over the network, potentially from the internet if the router is exposed.
• Local Network: Attackers within the same local network can also exploit this vulnerability to access the router's settings.

Exploitation Methods:

• Direct Access: Attackers can directly access the router's settings file without authentication.
• Automated Scripts: Malicious actors can use automated scripts to scan for vulnerable routers and extract settings files en masse.

3. Affected Systems and Software Versions

Affected Systems:

• Intelbras RX1500 v2.2.9
• Intelbras RX3000 v1.0.11

Software Versions:

• The vulnerability specifically affects the firmware versions mentioned above. Other versions may also be affected but have not been explicitly identified in the CVE.

4. Recommended Mitigation Strategies

Immediate Actions:

• Firmware Update: Immediately update the router firmware to the latest version provided by Intelbras.
• Network Segmentation: Isolate the router from the public internet and restrict access to trusted devices only.
• Firewall Rules: Implement strict firewall rules to block unauthorized access to the router's management interface.

Long-Term Strategies:

• Regular Audits: Conduct regular security audits and vulnerability assessments of network devices.
• Access Control: Enforce strong access control policies and use multi-factor authentication (MFA) where possible.
• Monitoring: Implement continuous monitoring and logging to detect and respond to suspicious activities.

5. Impact on Cybersecurity Landscape

Immediate Impact:

• Data Breach: Unauthorized access to router settings can lead to the exposure of sensitive information, including network configurations and credentials.
• Network Compromise: Attackers can use the obtained information to further compromise the network, leading to more severe attacks such as man-in-the-middle (MITM) attacks or unauthorized network access.

Long-Term Impact:

• Reputation Damage: Organizations using vulnerable routers may face reputational damage due to data breaches.
• Increased Attack Surface: The vulnerability increases the overall attack surface, making it easier for attackers to target and exploit network devices.

6. Technical Details for Security Professionals

Vulnerability Details:

• The vulnerability is due to improper access control mechanisms in the router's firmware, allowing unauthenticated users to access the settings file.
• The settings file may contain sensitive information such as network configurations, user credentials, and other critical settings.

Detection Methods:

• Network Scanning: Use network scanning tools to identify vulnerable routers within the network.
• Log Analysis: Analyze router logs for unauthorized access attempts or unusual activities.

Exploitation Steps:

1. Identify Vulnerable Routers: Use network scanning tools to identify routers running the affected firmware versions.
2. Access Settings File: Directly access the router's settings file without authentication.
3. Extract Information: Extract sensitive information from the settings file for further exploitation.

Mitigation Tools:

• Firmware Update Tools: Use Intelbras' firmware update tools to apply the latest patches.
• Network Security Tools: Implement network security tools such as firewalls, intrusion detection systems (IDS), and intrusion prevention systems (IPS) to monitor and protect the network.

Conclusion: CVE-2025-26062 represents a critical vulnerability that requires immediate attention. Organizations should prioritize updating affected routers and implementing robust security measures to mitigate the risk. Continuous monitoring and regular security audits are essential to maintain a secure network environment.