CVE-2025-15502 identifies a remote OS command injection vulnerability in Sangfor's Operation and Maintenance Management System (OMMS) versions 3.0.0 through 3.0.8. The vulnerability resides in the SessionController function of the /isomp-protocol/protocol/session component, where the Hostname parameter is improperly sanitized. An attacker can remotely supply crafted input to this parameter, leading to arbitrary command execution on the underlying operating system. This flaw requires no authentication or user interaction, making it highly accessible to remote attackers. The vulnerability is classified as an OS command injection, a critical class of flaws that can lead to full system compromise, data theft, or service disruption. Despite the availability of a public exploit, no active exploitation has been reported to date. The vendor was notified early but has not issued any patches or advisories, leaving users exposed. The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P) indicates network attack vector, low attack complexity, no privileges or user interaction required, and partial impacts on confidentiality, integrity, and availability. The lack of scope change means the vulnerability affects only the vulnerable component. Given the nature of the product—used for operation and maintenance management—successful exploitation could disrupt critical IT infrastructure management processes, potentially impacting system stability and security.

For European organizations, the impact of this vulnerability can be significant, especially for those relying on Sangfor OMMS for managing critical infrastructure, data centers, or enterprise IT operations. Exploitation could allow attackers to execute arbitrary commands remotely, leading to unauthorized access, data exfiltration, or disruption of maintenance workflows. This could result in operational downtime, loss of sensitive information, or lateral movement within networks. Sectors such as energy, telecommunications, manufacturing, and government agencies that use this system may face increased risks. The absence of vendor patches and public exploit availability heightens the threat level. Additionally, the ability to execute commands without authentication increases the likelihood of automated attacks or exploitation by opportunistic threat actors. European organizations with interconnected network environments may experience cascading effects, amplifying the operational impact.

Given the lack of official patches, European organizations should implement immediate compensating controls. First, restrict network access to the Sangfor OMMS interface by enforcing strict firewall rules and network segmentation to limit exposure to trusted management networks only. Second, implement input validation and filtering at the network perimeter or application proxy level to detect and block malicious payloads targeting the Hostname parameter. Third, monitor logs and network traffic for unusual command execution attempts or anomalies related to the SessionController function. Fourth, consider deploying host-based intrusion detection systems (HIDS) to detect suspicious OS command executions. Fifth, if feasible, isolate the affected OMMS instances in a controlled environment until a vendor patch is released. Finally, maintain up-to-date backups and incident response plans to quickly recover from potential compromises. Engage with Sangfor support channels regularly for updates or patches and consider alternative solutions if remediation is delayed.