Critical severity · published Mar 4, 2026
CVE-2026-28776
Hardcoded and Insecure Credentials for "monitor" account with SSH Access On IDC SFX2100 Satellite Receiver
9.8
CVSS
0.5%
EPSS
No
On KEV
Description
International Datacasting Corporation (IDC) SFX Series SuperFlex SatelliteReceiver contains hardcoded credentials for the `monitor` account. A remote unauthenticated attacker can use these trivial, undocumented credentials to access the system via SSH. While initially dropped into a restricted shell, the attacker can trivially break out to achieve standard shell functionality.
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
IS
IDC SFX2100 SuperFlex Satellite Receiver · International Datacasting Corporation (IDC)
SFX2100 · source: vendor
SF
Sfx2100 Firmware · Datacast
All versions, or not specified · source: NVD
Affected product
IS
IDC SFX2100 SuperFlex Satellite Receiver
International Datacasting Corporation (IDC)
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-28776
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-28776
Exploit
https://www.abdulmhsblog.com/posts/sfx2100-vulns/
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Hardcoded FTP Credentials and LPE(via Insecure Permissions) for `xd` Local Account on IDC SFX2100