International Datacasting Corporation IDC SFX2100 SuperFlex Satellite Receiver Home Directory hard-coded credentials

Summaryinfo

A vulnerability categorized as critical has been discovered in International Datacasting Corporation IDC SFX2100 SuperFlex Satellite Receiver SFX2100. This vulnerability affects unknown code of the component Home Directory Handler. Such manipulation leads to hard-coded credentials. This vulnerability is uniquely identified as CVE-2026-28778. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in International Datacasting Corporation IDC SFX2100 SuperFlex Satellite Receiver SFX2100 and classified as critical. Affected by this issue is an unknown functionality of the component Home Directory Handler. The manipulation with an unknown input leads to a hard-coded credentials vulnerability. Using CWE to declare the problem leads to CWE-798. The product contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data. Impacted is confidentiality, integrity, and availability. CVE summarizes:

International Datacasting Corporation (IDC) SFX Series SuperFlex Satellite Receiver contains undocumented, hardcoded/insecure credentials for the `xd` user account. A remote unauthenticated attacker can log in via FTP using these credentials. Because the `xd` user has write permissions to their home directory where root-executed binaries and symlinks (such as those invoked by `xdstartstop`) are stored, the attacker can overwrite these files or manipulate symlinks to achieve arbitrary code execution as the root user.

The weakness was disclosed by Abdul Mhanni. The advisory is shared for download at abdulmhsblog.com. This vulnerability is handled as CVE-2026-28778 since 03/03/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/17/2026). The MITRE ATT&CK project declares the attack technique as T1110.001.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• International Datacasting Corporation

Name

• IDC SFX2100 SuperFlex Satellite Receiver

Version

• SFX2100

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