EUVD-2025-204844

Comprehensive Technical Analysis of EUVD-2025-204844

1. Vulnerability Assessment and Severity Evaluation

The vulnerability EUVD-2025-204844 affects the Linksys E5600 V1.1.0.26 router, specifically in the runtime.macClone function via the mc.ip parameter. The vulnerability is classified as a command injection flaw, which allows an attacker to execute arbitrary commands on the affected device.

Severity Evaluation:

• Base Score: 9.8 (Critical)
• Base Score Version: CVSS 3.1
• Base Score Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

The CVSS score of 9.8 indicates a critical vulnerability. The vector string breaks down as follows:

• Attack Vector (AV): Network (N)
• Attack Complexity (AC): Low (L)
• Privileges Required (PR): None (N)
• User Interaction (UI): None (N)
• Scope (S): Unchanged (U)
• Confidentiality (C): High (H)
• Integrity (I): High (H)
• Availability (A): High (H)

This high score reflects the ease of exploitation and the severe impact on confidentiality, integrity, and availability.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Remote Exploitation: Given the network attack vector, an attacker can exploit this vulnerability over the network without requiring physical access to the device.
• Command Injection: The attacker can inject malicious commands through the mc.ip parameter, leading to arbitrary command execution on the router.

Exploitation Methods:

• Crafted HTTP Requests: An attacker can send specially crafted HTTP requests to the router's web interface, injecting commands that the router will execute.
• Automated Scripts: Attackers can use automated scripts to scan for vulnerable devices and exploit them en masse.

3. Affected Systems and Software Versions

Affected Systems:

• Linksys E5600 Router

Software Versions:

• Firmware Version: 1.1.0.26

It is crucial to note that other versions of the firmware might also be affected if they share the same codebase or have similar vulnerabilities.

4. Recommended Mitigation Strategies

Immediate Actions:

• Firmware Update: Users should immediately update the router firmware to a patched version if available.
• Network Segmentation: Isolate the router from critical networks to limit the potential impact of an exploit.
• Firewall Rules: Implement strict firewall rules to restrict access to the router's web interface.

Long-Term Strategies:

• Regular Patching: Establish a routine for regularly checking and applying firmware updates.
• Intrusion Detection Systems (IDS): Deploy IDS to monitor for suspicious activity targeting the router.
• User Education: Educate users on the importance of securing their routers and the risks associated with outdated firmware.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to European cybersecurity, particularly for home users and small businesses that rely on consumer-grade routers. The potential for widespread exploitation could lead to:

• Data Breaches: Unauthorized access to sensitive information.
• Network Compromise: Attackers gaining control over home and small business networks.
• Botnet Recruitment: Compromised routers being used in botnets for further malicious activities.

6. Technical Details for Security Professionals

Vulnerability Details:

• Function Affected: runtime.macClone
• Parameter: mc.ip
• Exploit Type: Command Injection

Exploitation Steps:

1. Identify Target: Scan for vulnerable Linksys E5600 routers.
2. Craft Payload: Create a malicious payload to inject through the mc.ip parameter.
3. Send Request: Send the crafted HTTP request to the router's web interface.
4. Execute Commands: The router executes the injected commands, leading to arbitrary command execution.

Detection and Monitoring:

• Log Analysis: Monitor router logs for unusual command execution or unauthorized access attempts.
• Network Traffic Analysis: Use network monitoring tools to detect suspicious traffic patterns targeting the router.

References:

• NVD Entry: CVE-2025-29228
• GitHub Repository: JZP018/Vuln

By addressing this vulnerability promptly and implementing robust security measures, organizations and individuals can mitigate the risks associated with EUVD-2025-204844 and enhance their overall cybersecurity posture.