CVE-2026-28778
Critical · 9.8CVSS
9.8
EPSS
0.8%
Published
Mar 4, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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