Critical severity · published Mar 4, 2026
CVE-2026-28777
Hardcoded and Insecure Credentials for "User" Local Account with SSH Access On IDC SFX2100 Satellite Receiver
9.8
CVSS
0.5%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SS
SFX2100 Satellite Receiver · International Datacasting Corporation (IDC)
SFX2100 · source: vendor
SF
Sfx2100 Firmware · Datacast
All versions, or not specified · source: NVD
Affected product
SS
SFX2100 Satellite Receiver
International Datacasting Corporation (IDC)