CVE-2026-2847 is an OS command injection vulnerability identified in the UTT HiPER 520 device, specifically version 1.7.7-160105. The vulnerability resides in the Web Management Interface component, within the function sub_44EFB4 of the /goform/formReleaseConnect endpoint. The issue arises due to improper validation and sanitization of the Isp_Name parameter, which an attacker can manipulate to inject arbitrary operating system commands. This flaw allows remote attackers to execute commands on the underlying system without requiring authentication or user interaction, making it highly exploitable. The vulnerability has been assigned a CVSS 4.0 score of 8.6, reflecting its high severity with network attack vector, low attack complexity, no privileges required, and no user interaction needed. The impact on confidentiality, integrity, and availability is high, as attackers can potentially gain full control over the device, manipulate configurations, disrupt services, or pivot into internal networks. Although no confirmed exploits in the wild have been reported yet, the public availability of exploit code increases the risk of imminent attacks. The affected product, UTT HiPER 520, is a network device likely used in enterprise or industrial environments, making the vulnerability particularly critical for organizations relying on these devices for network management and connectivity.

The exploitation of CVE-2026-2847 can have severe consequences for organizations worldwide. Successful attacks can lead to full compromise of the affected UTT HiPER 520 devices, allowing attackers to execute arbitrary commands with high privileges. This can result in unauthorized access to sensitive network configurations, disruption of network services, data exfiltration, or use of the compromised device as a foothold for lateral movement within the network. Given that the vulnerability is remotely exploitable without authentication or user interaction, attackers can launch automated attacks at scale. Organizations in critical infrastructure sectors, telecommunications, and enterprises relying on UTT HiPER 520 devices for network management are at heightened risk. The compromise of such devices could lead to significant operational disruptions, data breaches, and potential cascading effects on connected systems. The public availability of exploit code further elevates the threat level, increasing the likelihood of widespread exploitation attempts.

1. Immediate patching: Organizations should apply any available firmware updates or patches from UTT addressing this vulnerability. If no official patch is available, contact the vendor for guidance. 2. Access restriction: Limit access to the Web Management Interface by implementing strict network segmentation and firewall rules, allowing only trusted management hosts to connect. 3. Network segmentation: Isolate management interfaces from general network traffic to reduce exposure to potential attackers. 4. Input validation: If custom configurations or intermediary proxies are used, implement input validation and sanitization to block malicious payloads targeting the Isp_Name parameter. 5. Monitoring and detection: Deploy intrusion detection/prevention systems (IDS/IPS) and monitor logs for unusual command execution patterns or access attempts to the /goform/formReleaseConnect endpoint. 6. Disable unnecessary services: If the Web Management Interface is not required, disable it to eliminate the attack surface. 7. Incident response readiness: Prepare for potential exploitation by having incident response plans and backups in place to quickly recover from compromise. 8. Vendor engagement: Maintain communication with UTT for updates, patches, and advisories related to this vulnerability.