A vulnerability was found in Tenda A18 up to version 15.13.07.09. It has been rated as critical. This issue affects the function SetCmdlineRun of the file /goform/SetCmdlineRun of the component HTTP POST Request Handler. The manipulation of the argument wpapsk_crypto5g leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.
The severity of this vulnerability is high, with a CVSS score of 7.1. This classification is critical as it signifies a potential risk to organizations that utilize affected devices. The risk to organizations includes the possibility of unauthorized remote access and exploitation, leading to data breaches or network compromises.
Organizations should prioritize patching immediately. The exploit's public disclosure raises urgency, making it essential for security teams to validate if their systems are vulnerable and take appropriate actions.
Given the potential for remote exploitation, it is crucial for organizations to assess their risk exposure and implement necessary safeguards.
Vulnerability Details
The vulnerability affects Tenda A18 firmware versions up to 15.13.07.09. The CVE-2025-0848 vulnerability is officially classified as a stack-based buffer overflow resulting from improper handling of the wpapsk_crypto5g argument in the HTTP POST request. This vulnerability has been assigned a CVSS score of 7.1, indicating a high severity level due to its potential impact on system availability.
The vulnerability was published on January 30, 2025. Its CWE classifications include CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer), CWE-121 (Stack-based Buffer Overflow), and CWE-787 (Out-of-bounds Write).
Technical Analysis
The root cause of this vulnerability lies in the inadequate validation of input parameters, specifically the wpapsk_crypto5g argument. Attackers may exploit this weakness by sending specially crafted requests that manipulate the stack memory, potentially leading to arbitrary code execution. The attack vector is remote, requiring no physical access to the device.
The attack complexity is low, enabling attackers with minimal skill to exploit this vulnerability. No user interaction is required, further increasing the risk. The impact on availability is significant, as successful exploitation can lead to a complete system compromise.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2025-0848 is substantial. Organizations that use the affected Tenda A18 firmware could be exposed to significant threats, including unauthorized access to sensitive information and network resources. The blast radius is extensive, given the nature of remote exploitation, where attackers can potentially compromise multiple devices within the network.
This vulnerability emphasizes the importance of timely patching and regular security assessments to identify and mitigate risks proactively. Organizations should prioritize their remediation efforts based on the CVSS score and the potential impact of exploitation.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected product is Tenda A18 firmware versions up to 15.13.07.09. Organizations should consider all versions prior to vendor patch as vulnerable.
Mitigation & Remediation
Organizations should prioritize upgrading to the latest firmware version provided by Tenda to mitigate this vulnerability. In the absence of a patch, consider implementing network segmentation and strict firewall rules to limit access to the vulnerable component. Continuous monitoring and network controls are essential to detect any unusual behavior that may indicate exploitation attempts.
For further assistance, organizations can leverage services such as penetration testing to validate the security posture.
Detection Guidance
Monitoring logs for unexpected HTTP POST requests to /goform/SetCmdlineRun is critical. Look for anomalies in request patterns and payload sizes that could indicate exploitation attempts. Additionally, track any system changes that occur following firmware updates.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-0848 highlights the importance of rigorous input validation and the need for proactive security measures in firmware development. This vulnerability serves as a reminder of the potential risks associated with network-exposed devices, particularly those handling sensitive configurations.
Security teams should take this opportunity to assess existing vulnerabilities within their organizations and improve their overall security posture. For more insights on vulnerability management, refer to our guide on vulnerability management programs and the importance of continuous security assessments.
The pattern of vulnerabilities in consumer-grade networking devices emphasizes the need for organizations to engage in thorough penetration testing to evaluate and fortify their security defenses against potential exploits.
In conclusion, as vulnerabilities like CVE-2025-0848 emerge, they remind us of the critical role that security practices play in safeguarding organizational assets.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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