Sfx2100 Firmware
CVE-2026-28777
CRITICAL
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
International Datacasting Corporation (IDC)
SFX2100 Satellite Receiver, trivial password for the user (usr) account. A remote unauthenticated attacker can exploit this to gain unauthorized SSH access to the system, while intially dropped into a restricted shell, an attacker can trivially spawn a complete pty to gain an appropriately interactive shell.
AnalysisAI
Hardcoded/insecure credentials in IDC SFX Series SuperFlex Satellite Receiver. Multiple accounts with known credentials enable complete device takeover.
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | IDC SFX2100 Satellite Receiver with default trivial password enabled on 'user' (usr) SSH account. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 9.8. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Login with known credentials to control satellite receiver. |
| Remediation | Apply firmware update. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify all affected systems and apply vendor patches immediately. …
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External POC / Exploit Code
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