CVE-2025-25678 is a critical vulnerability affecting Tenda i12 firmware version 1.0.0.10 (3805). This vulnerability allows attackers to exploit a buffer overflow via the funcpara1 parameter in the formSetCfm function, posing significant risks to system integrity and availability.
With a CVSS score of 9.8, this vulnerability is classified as critical. It is crucial for organizations utilizing the affected firmware to understand the potential impact and take necessary actions. As it is exploitable over a network with low complexity and no privileges required, the urgency for remediation cannot be overstated.
Risk to organizations includes unauthorized access and control over the affected devices, leading to data breaches or service disruptions. Given the severity of this vulnerability, organizations should prioritize patching immediately.
Currently, there are no known public exploits or proof of concepts available for this vulnerability, which provides a brief window for organizations to implement remediation before potential exploitation occurs.
Given the critical nature of this vulnerability, organizations must take swift action to mitigate risks associated with CVE-2025-25678.
Vulnerability Details
The vulnerability is identified as a buffer overflow in the Tenda i12 firmware, specifically in version 1.0.0.10 (3805). It is categorized under CWE-120, which pertains to buffer errors. The vulnerability was published on February 20, 2025, and is currently analyzed for its impact and exploitability.
The CVSS score of 9.8 reflects the attack vector as network-based, with low complexity and no required privileges or user interaction. The high impacts on confidentiality, integrity, and availability highlight the necessity for urgent remediation.
Technical Analysis
The root cause of this vulnerability is a failure in proper input validation within the formSetCfm function. Attackers may leverage this oversight to send specially crafted input that exceeds the expected buffer size, leading to potential execution of arbitrary code.
The attack vector is over the network, requiring no privileges or user interaction. The impacts of this vulnerability are significant, resulting in high confidentiality, integrity, and availability impacts.
Risk & Impact Analysis
Real-world deployment risks include unauthorized control over the Tenda device, potential data leaks, or further network compromises. Organizations utilizing this firmware must consider the blast radius of an exploited vulnerability, especially in environments where critical data is handled.
Given the CVSS score of 9.8 and its absence from the KEV catalog, the urgency for action is high, emphasizing immediate patching as a priority.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected version is Tenda i12 firmware version 1.0.0.10 (3805). Organizations not running this version are not affected by this vulnerability.
Mitigation & Remediation
Organizations should prioritize patching the Tenda i12 firmware immediately to remediate this critical vulnerability. For effective remediation, update to the latest firmware version as soon as it becomes available. Further, organizations should implement network controls to limit exposure of the vulnerable devices.
For continuous security, organizations should consider adopting continuous penetration testing to identify similar weaknesses proactively.
Detection Guidance
Organizations should monitor logs for unusual behavior or anomalies associated with the Tenda i12 devices. Indicators of compromise may include unexpected configurations or unauthorized access attempts. Additionally, network signatures should be updated to detect exploit patterns associated with this vulnerability.
AppSecure Threat Intelligence Insight
CVE-2025-25678 highlights the importance of maintaining updated firmware across network devices. As vulnerabilities are discovered, proactive measures such as regular audits and vulnerability assessments become essential.
Organizations should adopt a vulnerability management program to ensure timely updates and remediation actions.
By leveraging comprehensive penetration testing methodologies, organizations can identify vulnerabilities before they can be exploited.
Furthermore, understanding the attack vectors associated with this vulnerability can enhance organizational defenses. Regular training and awareness programs should be implemented to prepare teams for potential threats.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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