CVE-2026-28777
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.51%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 4.0
- 9.2 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.51% probability · 43th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-798
- Affected
- datacast/sfx2100 firmware
- Source
- b7efe717-a805-47cf-8e9a-921fca0ce0ce
EPSS 0.5% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://www.abdulmhsblog.com/posts/sfx2100-vulns/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.