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CVE-2025-25507: Medium Vulnerability in Tenda AC6 Firmware

A medium-severity remote code execution vulnerability has been discovered in Tenda AC6 firmware version 15.03.05.16_multi. Organizations should prioritize patching immediately to mitigate potential risks associated with this vulnerability.

MEDIUMCVSS 6.5 · Published February 21, 2025

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There is a RCE vulnerability in Tenda AC6 15.03.05.16_multi. In the formexeCommand function, the parameter cmdinput will cause remote command execution. This vulnerability has been analyzed and classified with a CVSS score of 6.5, indicating a medium severity. Organizations using this firmware version should be aware of the potential risks, as the vulnerability can be exploited over the network with low complexity and no privileges or user interaction required.

Risk to organizations includes unauthorized remote access to the affected device, which could lead to further compromise of the network. As this vulnerability has been confirmed but does not currently have a known exploit, organizations should prioritize patching immediately.

The vulnerability was published on February 21, 2025, and it is essential for organizations to address it promptly to avoid potential exploitation. With an EPS score of 0.00758, the risk of exploitation remains low, but it is critical not to underestimate the potential impact.

Immediate action should be taken to secure the firmware by applying the necessary patches or updates provided by Tenda. Vulnerabilities like this pose ongoing risks to network integrity and confidentiality.

Vulnerability Details

The vulnerability description indicates a remote code execution (RCE) issue in the Tenda AC6 firmware version 15.03.05.16_multi. The vulnerability type is classified under CWE-94, which relates to improper control of generation of code ('code injection').

As per the CVSS scoring, the attack vector is network-based, with low attack complexity and no privileges required to exploit this vulnerability. The impacts on confidentiality and integrity are rated as low, while availability is not impacted.

Technical Analysis

The root cause of this vulnerability lies in how the cmdinput parameter is processed within the formexeCommand function. An attacker can craft a specific input to execute arbitrary commands on the affected device. The attack vector is network-based, meaning that an attacker can initiate an exploit from any location with network access to the vulnerable device.

The attack complexity is low, as there is no requirement for user interaction, and the privileges required are none. This indicates that even an unauthenticated attacker can exploit this vulnerability, potentially leading to unauthorized access and control over the device.

Risk & Impact Analysis

Real-world deployment of the Tenda AC6 with the vulnerable firmware presents a significant risk to organizations. Attackers may leverage this vulnerability to gain control over the device and subsequently pivot to other parts of the network. The potential blast radius includes any device that communicates with the compromised AC6.

The urgency for organizations to address this vulnerability is high, considering the straightforward nature of the exploit and the potential consequences of an attacker gaining unauthorized access. Organizations should factor this into their patch management processes and prioritize remediation efforts accordingly.

Exploitation Status

Signal

Status

Known Exploit

No

Public PoC

No

Actively Exploited

No

Ransomware Use

No

Affected Versions

The affected version is Tenda AC6 firmware 15.03.05.16_multi. Organizations using this firmware should ensure they are updated to the latest version provided by Tenda to mitigate the risk associated with this vulnerability.

Mitigation & Remediation

Tenda has released a patch to address this vulnerability. Organizations should ensure they update their firmware to the latest version available. If a patch is unavailable, consider implementing network segmentation to limit access to the affected devices and monitor network traffic for any anomalies.

For further guidance on securing your environment, organizations may consider engaging in penetration testing services to uncover any additional vulnerabilities.

Detection Guidance

Monitoring logs for abnormal command execution attempts can aid in early detection of exploitation attempts. Organizations should look for unusual patterns in command inputs or anomalies in system behavior.

AppSecure Threat Intelligence Insight

This vulnerability highlights the importance of securing network-connected devices, particularly IoT products like the Tenda AC6. As attackers increasingly target such devices, organizations must prioritize security measures to protect their networks.

For further insights into managing vulnerabilities effectively, organizations can explore resources on vulnerability management programs and the importance of continuous security assessments like penetration testing methodology to stay ahead of emerging threats.

As organizations navigate the evolving threat landscape, understanding and addressing vulnerabilities such as CVE-2025-25507 is vital for maintaining a robust security posture.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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