CVE-2026-3015 is a buffer overflow vulnerability identified in the UTT HiPER 810G device firmware up to version 1.7.7-171114. The vulnerability arises from improper handling of the GroupName parameter in the /goform/formPolicyRouteConf endpoint, where the strcpy function is used without bounds checking. This allows an attacker to supply an overly long input string, causing a buffer overflow that can overwrite adjacent memory. Because the endpoint is remotely accessible and does not require authentication or user interaction, an attacker can exploit this vulnerability over the network to execute arbitrary code or disrupt device operation, potentially leading to denial of service or full device compromise. The vulnerability has been assigned a CVSS 4.0 base score of 8.7, indicating high severity, with network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. Although no confirmed exploits have been observed in the wild, the public disclosure of exploit details increases the likelihood of active exploitation. The vulnerability affects a specific version of the UTT HiPER 810G, a device commonly used in enterprise and telecommunications environments, making it a significant risk for organizations relying on this hardware. No official patches or mitigation links were provided at the time of disclosure, emphasizing the need for immediate risk management and mitigation strategies.

The impact of CVE-2026-3015 is substantial for organizations using the UTT HiPER 810G device. Successful exploitation can lead to remote code execution, allowing attackers to take full control of the device, manipulate network traffic, or disrupt network services. This can compromise the confidentiality and integrity of sensitive data passing through the device and cause availability issues through denial of service. Given the device's role in routing and network policy enforcement, attackers could pivot to internal networks, escalate privileges, or establish persistent footholds. The lack of authentication and user interaction requirements lowers the barrier to exploitation, increasing risk. Organizations in telecommunications, critical infrastructure, and enterprises using these devices face potential operational disruptions and data breaches. The public disclosure of the exploit details further elevates the threat level by enabling attackers to develop and deploy exploits rapidly.

1. Immediate mitigation should include isolating affected UTT HiPER 810G devices from untrusted networks to reduce exposure. 2. Monitor network traffic for unusual activity targeting the /goform/formPolicyRouteConf endpoint, including unusually long or malformed GroupName parameters. 3. Implement network-level access controls such as firewall rules or intrusion prevention systems to block or limit access to the vulnerable endpoint. 4. Engage with UTT vendor support to obtain official patches or firmware updates addressing this vulnerability; prioritize applying these updates as soon as they become available. 5. If patches are unavailable, consider temporary workarounds such as disabling or restricting access to the vulnerable management interface or endpoint. 6. Conduct thorough security audits and penetration testing on affected devices to identify potential exploitation or compromise. 7. Maintain up-to-date asset inventories to quickly identify and remediate affected devices. 8. Educate network administrators about the vulnerability and signs of exploitation to enhance detection and response capabilities.