CVE-2026-76003 UTT CVE debrief

Who should care

Organizations using UTT HiPER 1200GW up to 2.5.3-170306, cybersecurity teams, network administrators, and operators of affected systems should be aware of this vulnerability and take necessary actions to protect their assets. This includes reviewing system deployments, assessing potential impact, and implementing patches or mitigations as needed. Vulnerability management and security teams should prioritize this issue due to its high severity and potential for remote exploitation. Regular monitoring and detection efforts should also be reviewed to ensure adequate coverage of exposed systems. Additionally, asset inventory management should be updated to reflect affected systems and track remediation progress effectively. Change management processes should be utilized for applying patches or implementing compensating controls. Source tracking and verification of affected scope are crucial for ensuring comprehensive mitigation. This vulnerability's impact on operational security and potential for exploitation necessitates prompt attention from all relevant stakeholders, including those responsible for system maintenance, security operations, and incident response. The high CVSS score of 8.6 underscores the urgency of addressing this vulnerability to prevent potential attacks and minimize risk exposure. Therefore, it is essential that affected organizations and relevant teams take immediate action to address this vulnerability and protect their systems from potential exploitation. This includes not only applying patches but also reviewing and enhancing existing security controls and monitoring capabilities to detect and respond to potential threats effectively. By prioritizing this vulnerability and taking proactive measures, organizations can reduce their risk exposure and protect their assets from potential attacks. The CVE record provides critical information about the vulnerability, including its CVSS score, severity, and potential impact, which should be carefully reviewed and considered when developing mitigation strategies. Overall, a comprehensive and coordinated approach is necessary to effectively address this vulnerability and minimize its potential risk.

Technical summary

A stack-based buffer overflow vulnerability exists in UTT HiPER 1200GW up to 2.5.3-170306, specifically in the strcpy function of /goform/formGroupConfig. The vulnerability can be exploited remotely by manipulating the timestart argument. The CVE record indicates a CVSS score of 8.6 and a severity of HIGH. Affected organizations should prioritize patching or mitigating this vulnerability to prevent potential attacks.

Defensive priority

Organizations using UTT HiPER 1200GW up to 2.5.3-170306 should prioritize patching or mitigating the stack-based buffer overflow vulnerability.

Recommended defensive actions

• Apply patches or updates provided by the vendor to address the stack-based buffer overflow vulnerability
• Implement network segmentation and isolation to limit the attack surface
• Monitor network traffic and system logs for suspicious activity
• Perform regular vulnerability assessments and penetration testing to identify potential weaknesses
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record indicates a weakness in UTT HiPER 1200GW up to 2.5.3-170306, specifically in the strcpy function of /goform/formGroupConfig, which can lead to a stack-based buffer overflow via manipulation of the timestart argument. The attack can be performed remotely. However, details are limited, and further verification is required to fully understand the vulnerability's impact and exploitability.

Official resources