CVE-2026-2182 is a command injection vulnerability identified in the UTT 进取 521G device, version 3.1.1-190816. The vulnerability resides in the doSystem function of the /goform/setSysAdm endpoint, where the passwd1 parameter is improperly sanitized, allowing an attacker to inject and execute arbitrary system commands remotely. The attack vector is network-based (AV:N), with low attack complexity (AC:L), and does not require user interaction (UI:N). However, it requires high privileges (PR:H), indicating that the attacker must have elevated access on the device to exploit the flaw. The vulnerability impacts confidentiality, integrity, and availability with high severity (CVSS 8.6). The scope is unchanged (S:U), but the impact on all three security properties is high (VC:H, VI:H, VA:H). Although no exploits have been observed in the wild yet, a public exploit is available, which could facilitate attacks. The vulnerability could allow attackers to execute arbitrary commands, potentially leading to full device compromise, data leakage, or denial of service. The lack of vendor patches at the time of publication increases the urgency for organizations to implement interim mitigations. This vulnerability is critical for environments where UTT 进取 521G devices are deployed, especially in network infrastructure roles.

For European organizations, the impact of CVE-2026-2182 could be significant, particularly for those relying on UTT 进取 521G devices in critical network infrastructure or administrative roles. Successful exploitation can lead to full device compromise, enabling attackers to execute arbitrary commands, disrupt network services, exfiltrate sensitive data, or pivot to other internal systems. This threatens confidentiality, integrity, and availability of affected systems. Given the device’s role in network management, exploitation could result in widespread service outages or unauthorized access to internal networks. The availability of a public exploit increases the risk of opportunistic attacks, especially in sectors such as telecommunications, government, and critical infrastructure. The requirement for high privileges to exploit the vulnerability suggests that attackers may need to first compromise credentials or gain elevated access, but once achieved, the impact is severe. Organizations without robust network segmentation or monitoring may face increased exposure. The lack of patches at the time of disclosure means that mitigation relies heavily on network controls and access restrictions, which may not be uniformly implemented across European entities.

1. Immediately restrict remote access to the /goform/setSysAdm endpoint and related management interfaces using firewalls or access control lists, limiting access to trusted administrators only. 2. Implement strict network segmentation to isolate UTT 进取 521G devices from general user networks and the internet. 3. Monitor device logs and network traffic for unusual commands or patterns indicative of exploitation attempts, leveraging intrusion detection systems tailored to detect command injection behaviors. 4. Enforce strong authentication and credential management to prevent attackers from obtaining the high privileges required for exploitation. 5. Disable or limit the use of the vulnerable doSystem function if possible, or apply configuration changes to sanitize inputs more effectively. 6. Engage with the vendor for timely patches or firmware updates and apply them as soon as they become available. 7. Conduct regular security assessments and penetration tests focusing on network devices to detect similar vulnerabilities proactively. 8. Educate network administrators about the risks and signs of exploitation to improve incident response readiness.