CVE-2026-28778
Hardcoded FTP Credentials and LPE(via Insecure Permissions) for `xd` Local Account on IDC SFX2100
Description
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.
INFO
Published Date :
March 4, 2026, 8:16 a.m.
Last Modified :
March 17, 2026, 5:02 p.m.
Remotely Exploit :
Yes !
Source :
b7efe717-a805-47cf-8e9a-921fca0ce0ce
Affected Products
The following products are affected by CVE-2026-28778
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 4.0 | HIGH | b7efe717-a805-47cf-8e9a-921fca0ce0ce | ||||
| CVSS 4.0 | HIGH | b7efe717-a805-47cf-8e9a-921fca0ce0ce |
Solution
- Disable or remove the 'xd' user account.
- Change all hardcoded credentials.
- Implement secure password policies.
- Remove or secure writable directories.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-28778.
| URL | Resource |
|---|---|
| https://www.abdulmhsblog.com/posts/sfx2100-vulns/ | Exploit Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-28778 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-28778
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-28778 vulnerability anywhere in the article.
-
The Cyber Express
A Satellite Receiver Trusted by Pentagon, ESA Has More Than 20 Security Flaws — and the Maker Never Responded
A penetration tester found more than 20 vulnerabilities in a satellite receiver deployed by the U.S. Department of Defense (also referred to as the Department of War), the European Space Agency, and o ... Read more
The following table lists the changes that have been made to the
CVE-2026-28778 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 17, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CPE Configuration AND OR *cpe:2.3:o:datacast:sfx2100_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:datacast:sfx2100:-:*:*:*:*:*:*:* Added Reference Type Gridware: https://www.abdulmhsblog.com/posts/sfx2100-vulns/ Types: Exploit, Third Party Advisory -
CVE Modified by b7efe717-a805-47cf-8e9a-921fca0ce0ce
Mar. 05, 2026
Action Type Old Value New Value Added Reference https://www.abdulmhsblog.com/posts/sfx2100-vulns/ Removed Reference https://www.abdulmhsblog.com/posts/spfx-vulnrabilities/ -
New CVE Received by b7efe717-a805-47cf-8e9a-921fca0ce0ce
Mar. 04, 2026
Action Type Old Value New Value Added Description 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-798 Added Reference https://www.abdulmhsblog.com/posts/spfx-vulnrabilities/