Unpatched IDC SFX2100 Satellite Receiver Vulnerabilities Expose Critical Infrastructure to Remote Compromise
A security researcher publicly disclosed 20+ vulnerabilities in the International Data Casting (IDC) SFX2100 satellite receiver, a device reported as deployed across U.S. Department of Defense, European Space Agency, and other critical infrastructure environments, after the vendor allegedly failed to respond to repeated disclosure attempts over several months. Reported issues span common embedded-device failure modes including hardcoded credentials, unauthenticated remote code execution, OS command injection, path traversal, and overly permissive filesystem configurations, with CVEs assigned across CVE-2026-28769 through CVE-2026-29128. One highlighted high-impact issue, CVE-2026-28775, reportedly enables unauthenticated command execution as root by abusing SNMP management functionality combined with a default read-write community string of private.
Additional detail on the credential exposure risk is captured in CVE-2026-29128, which describes world-readable routing daemon configuration files (e.g., zebra.conf, bgpd.conf, ospfd.conf, ripd.conf) that are root-owned but readable by all users and contain plaintext/hardcoded passwords (including privileged “enable” credentials). This condition can enable credential reuse and lateral movement, potentially helping an attacker establish or deepen access within networks where the SFX2100 is deployed, and it compounds other reported weaknesses such as undocumented default accounts (e.g., admin, monitor, user, xd) allegedly sharing a weak password (12345).
Timeline
Mar 6, 2026
Public reporting notes IDC had issued no statement or patches
Coverage of the disclosure stated that IDC had not released a public advisory, statement, or patches for the SFX2100 vulnerabilities as of publication. The researcher recommended that affected organizations inventory and isolate exposed devices until fixes become available.
Mar 6, 2026
Researcher publicly discloses 20+ unpatched SFX2100 vulnerabilities
After receiving no vendor response, the researcher publicly disclosed more than 20 security flaws in IDC's SFX2100 satellite receiver. The disclosure highlighted severe risks to deployments used by organizations including the U.S. Department of Defense, the European Space Agency, and other critical infrastructure operators.
Mar 5, 2026
CVE-2026-29128 details published for world-readable credential files
Public vulnerability details were released for CVE-2026-29128, describing world-readable routing daemon configuration files on the SFX2100 that expose plaintext passwords, including privileged enable credentials. The disclosure warned the credentials could be reused to access other network systems and potentially help an attacker gain a foothold or escalate privileges.
Mar 5, 2026
Twenty SFX2100 vulnerabilities receive CVE assignments
Twenty vulnerabilities affecting the IDC SFX2100 satellite receiver were assigned CVEs in the range CVE-2026-28769 through CVE-2026-29128. The issues included hardcoded credentials, unauthenticated remote code execution, command injection, path traversal, and weak filesystem permissions.
Dec 6, 2025
Researcher reports SFX2100 flaws to IDC during 90-day disclosure window
A penetration tester repeatedly attempted to disclose more than 20 vulnerabilities in IDC's SFX2100 satellite receiver to the vendor over several months, including outreach within a 90-day responsible disclosure period. IDC reportedly did not respond to the disclosure attempts.
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