CVE-2026-28774 is an OS Command Injection vulnerability classified under CWE-78, affecting the International Datacasting Corporation (IDC) SFX Series SuperFlex SatelliteReceiver Web Management Interface version 101. The flaw exists in the web-based Traceroute diagnostic utility, specifically in the handling of the 'flags' parameter. This parameter fails to properly neutralize special shell metacharacters, such as the pipe '|' operator, allowing an authenticated attacker to inject arbitrary commands. Because the injected commands execute with root privileges, the attacker gains full control over the underlying operating system. The vulnerability requires the attacker to authenticate to the web management interface but does not require additional user interaction. The CVSS 4.0 vector indicates network attack vector (AV:N), low attack complexity (AC:L), no attack prerequisites (AT:N), privileges required (PR:L), no user interaction (UI:N), and high impact on confidentiality, integrity, and availability (VC:H, VI:H, VA:N). This means exploitation is feasible remotely once authenticated, with severe consequences including data compromise, system manipulation, and service disruption. The vulnerability is currently published without known exploits in the wild and no official patch links are provided yet. Given the product's role in satellite data distribution and broadcasting, exploitation could disrupt critical communications infrastructure. The vulnerability highlights the risk of insufficient input validation in network management utilities of embedded systems.

The impact of CVE-2026-28774 is severe for organizations relying on IDC SFX Series SuperFlex SatelliteReceivers, especially those in broadcasting, satellite communications, and critical infrastructure sectors. Successful exploitation allows attackers to execute arbitrary commands as root, leading to full system compromise. This can result in unauthorized data access, modification or deletion of critical configuration files, disruption of satellite data transmission services, and potential pivoting to other network segments. The loss of availability or integrity in satellite receiver systems can have cascading effects on broadcast services, emergency communications, and data distribution networks. Because the vulnerability requires authentication, insider threats or compromised credentials significantly increase risk. The lack of known exploits in the wild currently limits immediate widespread impact, but the high severity score and root-level access potential make this a critical risk that must be addressed promptly to prevent future attacks.

To mitigate CVE-2026-28774, organizations should immediately restrict access to the IDC SFX Series SuperFlex SatelliteReceiver Web Management Interface to trusted networks and personnel only, employing network segmentation and strong access controls. Implement multi-factor authentication to reduce the risk of credential compromise. Monitor logs for unusual traceroute command usage or suspicious input patterns in the 'flags' parameter. Until an official patch is released, consider disabling or restricting the Traceroute diagnostic utility if feasible. Employ web application firewalls (WAFs) with custom rules to detect and block injection attempts targeting the 'flags' parameter. Conduct regular credential audits and rotate passwords to minimize insider threat risks. Engage with IDC for timely updates or patches and apply them as soon as available. Additionally, perform penetration testing focused on management interfaces to identify similar injection flaws and improve input validation practices.