A vulnerability has been found in UTT 进取 520W 1.7.7-180627. This vulnerability affects the function strcpy of the file /goform/ConfigExceptMSN. The manipulation leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
The severity level of this vulnerability is classified as high, with a CVSS score of 7.4. This rating indicates that the vulnerability poses a significant risk to organizations, particularly as it can be exploited remotely with low complexity and minimal privileges required. Organizations should prioritize patching immediately.
Due to the nature of the buffer overflow, attackers may leverage this vulnerability to execute arbitrary code on affected systems, leading to total system compromise. The risk to organizations includes unauthorized access and potential data loss.
As of now, there is no confirmed public exploit available, but the exploit has been disclosed. This situation necessitates immediate attention from security teams to ensure that systems are not vulnerable to exploitation.
Vulnerability Details
A vulnerability has been found in UTT 进取 520W 1.7.7-180627, which affects the function strcpy of the file /goform/ConfigExceptMSN. This vulnerability allows for a buffer overflow, enabling remote attackers to exploit the system.
The CVSS score is 7.4, indicating high severity. The vulnerability impacts confidentiality, integrity, and availability, making it critical for organizations to address.
The affected product is UTT 520W firmware, specifically version 1.7.7-180627. The vulnerability was published on January 19, 2026.
Technical Analysis
The root cause of this vulnerability is a buffer overflow, which occurs due to improper handling of input size in the strcpy function. Attackers can exploit this vulnerability remotely, requiring low privileges and no user interaction.
The attack vector is network-based, allowing for exploitation over the internet. The attack complexity is low, and the potential impacts on confidentiality, integrity, and availability are high.
Risk & Impact Analysis
The real-world risk associated with this vulnerability is significant. Organizations utilizing UTT 520W firmware are at risk of remote exploitation, which could lead to unauthorized access and data breaches. The vulnerability's high CVSS score indicates that it should be addressed as a priority.
Organizations should assess their exposure and implement necessary controls to mitigate risk. Given the potential blast radius, swift action is advisable to protect sensitive information and maintain system integrity.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions include UTT 520W firmware version 1.7.7-180627. If version information is not available, organizations should assume that all versions prior to vendor patch are affected.
Mitigation & Remediation
To mitigate this vulnerability, organizations should prioritize applying patches or updates from UTT. It is critical to upgrade to the latest version of UTT 520W firmware that addresses this buffer overflow vulnerability.
If a patch is not available, organizations may implement network segmentation to limit exposure and minimize the risk of remote exploitation. Additionally, firewall rules should be reviewed and updated to restrict access to vulnerable systems.
For ongoing security, organizations should consider implementing continuous security testing, which can help identify similar weaknesses in the future.
Detection Guidance
To detect any attempts to exploit this vulnerability, organizations should monitor logs for unusual activity related to the /goform/ConfigExceptMSN file. Additionally, behavioral anomalies in network traffic should be analyzed to identify potential exploitation attempts.
System changes, particularly modifications to the UTT 520W firmware, should be closely monitored to ensure that no unauthorized changes occur.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability lies in its demonstration of the risks associated with buffer overflows in IoT devices. Security teams must recognize the patterns that lead to such vulnerabilities and implement robust security practices.
Organizations should take this incident as a lesson to enhance their vulnerability management programs. Regular security assessments, such as penetration testing, can help identify weaknesses before they are exploited.
Continuous security testing should be integrated into the development lifecycle to ensure vulnerabilities are addressed proactively.
Finally, as this vulnerability highlights, organizations must remain vigilant and ensure that they are informed about new vulnerabilities and the associated risks. By adopting a proactive approach to security, organizations can better defend against 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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