The vulnerability identified as CVE-2026-24440 affects the Shenzhen Tenda W30E V2 firmware, specifically versions up to and including V16.01.0.19(5037). This vulnerability allows account passwords to be changed through the maintenance interface without requiring verification of the existing password. As a result, unauthorized password changes can occur if an attacker gains access to the affected endpoint.
The severity of this vulnerability is classified as high, with a CVSS score of 8.7. Such a rating indicates a significant risk to organizations employing the affected devices, as it opens the door for unauthorized access and potential exploitation of sensitive information.
Given the nature of this vulnerability, attackers may leverage it to gain control over user accounts, potentially leading to further exploitation within the network. Organizations using Tenda W30E devices should prioritize addressing this vulnerability.
As of the last update, there are no known public exploits for this vulnerability, and it has not been included in the Known Exploited Vulnerabilities (KEV) catalog. However, the urgency for remediation remains high, and organizations should take immediate action to mitigate potential risks.
Vulnerability Details
The official description of this vulnerability states that the Tenda W30E V2 firmware allows account passwords to be changed through the maintenance interface without requiring verification of the existing password. This is classified under CWE-620, indicating a credential management issue.
The CVSS score of 8.7 indicates that the attack vector is network-based, with low complexity and low privileges required. This highlights the ease with which attackers can exploit this vulnerability.
The affected products are specifically the Tenda W30E firmware, and the publication date of this vulnerability was January 26, 2026.
Technical Analysis
The root cause of this vulnerability lies in the lack of authentication requirements for password changes via the maintenance interface. Without the need to verify the existing password, an attacker with access to the maintenance interface can easily change user passwords.
The attack vector for this vulnerability is network-based, allowing remote exploitation. The attack complexity is low, requiring minimal effort for an attacker to exploit this weakness. Privileges required are low, and user interaction is not necessary.
The impact on confidentiality, integrity, and availability is high, indicating that successful exploitation could lead to significant data breaches and unauthorized access to sensitive systems.
Risk & Impact Analysis
Risk to organizations includes unauthorized access to user accounts, which could lead to further exploitation of systems and compromise of sensitive data. The blast radius potential is significant given the network accessibility of the affected firmware.
Organizations should assess the urgency based on the CVSS score and potential exploitation scenarios. Given the high severity and associated risks, organizations must address this vulnerability immediately to prevent unauthorized access.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions include all firmware versions of the Tenda W30E V2 up to and including V16.01.0.19(5037). Organizations should ensure that they are using a patched version of the firmware to mitigate this vulnerability.
Mitigation & Remediation
To remediate this vulnerability, organizations should update their Tenda W30E firmware to the latest version that resolves this issue. It is crucial to monitor any unauthorized changes to passwords and implement network controls to restrict access to the maintenance interface.
More information on securing your Tenda devices can be found through our penetration testing services.
Detection Guidance
Organizations should monitor logs for any unauthorized password change attempts. Behavioral anomalies such as unusual access patterns to the maintenance interface should also be flagged.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability lies in its ability to enable unauthorized changes to user accounts, leading to potential account takeovers and data breaches. Security teams should take this incident as a reminder of the importance of robust credential management practices.
This vulnerability exemplifies a broader trend in security weaknesses where basic authentication measures are inadequate. It serves as a lesson for organizations to regularly review and update their security protocols.
For further reading on security best practices, consider reviewing our articles on penetration testing methodology and vulnerability management programs to enhance your security posture.
Lastly, organizations should remain vigilant and continue to adapt their security strategies to address emerging vulnerabilities and threats.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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