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CVE-2026-28778— Hardcoded FTP Credentials and LPE(via Insecure Permissions) for `xd` Local Account on IDC SFX2100

Quick assessment

Affected
International Datacasting Corporation (IDC) IDC SFX2100 SuperFlex Satellite Receiver
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

International Datacasting SFX2100 SuperFlex Satellite Receiver是美国International Datacasting公司的一个专业广播级卫星信号接收设备。 International Datacasting SFX2100 SuperFlex Satellite Receiver存在安全漏洞，该漏洞源于xd用户账户存在硬编码凭证，可能导致未经身份验证的远程访问和任意代码执行。

AI Predicted 9.8 Difficulty: Trivial EPSS 0.83% · P56
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I. Basic Information for CVE-2026-28778

Vulnerability Information
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Vulnerability Title
Hardcoded FTP Credentials and LPE(via Insecure Permissions) for `xd` Local Account on IDC SFX2100
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用硬编码的凭证
Source: CVE Program / CVE List V5
Vulnerability Title
International Datacasting SFX2100 SuperFlex Satellite Receiver 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
International Datacasting SFX2100 SuperFlex Satellite Receiver是美国International Datacasting公司的一个专业广播级卫星信号接收设备。 International Datacasting SFX2100 SuperFlex Satellite Receiver存在安全漏洞，该漏洞源于xd用户账户存在硬编码凭证，可能导致未经身份验证的远程访问和任意代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
International Datacasting Corporation (IDC) IDC SFX2100 SuperFlex Satellite Receiver SFX2100 -

II. Public POCs for CVE-2026-28778

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III. Intelligence Information for CVE-2026-28778

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Security Blog Posts for CVE-2026-28778 (2)

Same Patch Batch · International Datacasting Corporation (IDC) · 2026-03-04 · 11 CVEs total

CVE-2026-28770 XML injection In /IDC_Logging/checkifdone.cgi Endpoint On IDC SFX Web Management Interface
CVE-2026-28769 LFI in /IDC_Logging/checkifdone.cgi, "file" parameter Allowing for File Existence Enumerat
CVE-2026-28772 Reflected XSS in IDC_Logging Index endpoint
CVE-2026-28774 Authenticated OS Command Injection via Traceroute Utility leads to Root RCE
CVE-2026-28771 Reflected XSS In /index.cgi Endpoint On IDC Satellite Receiver Web Management Interface Ve
CVE-2026-28773 Authenticated OS Command Injection via Ping Utility Leading to RCE as Root
CVE-2026-28775 Unauthenticated RCE via SNMP Default Writable Community String
CVE-2026-29119 Hardcoded and Insecure Credentials for "Admin" Account providing Telnet Access on IDC SFX2
CVE-2026-28777 Hardcoded and Insecure Credentials for "User" Local Account with SSH Access On IDC SFX2100
CVE-2026-28776 Hardcoded and Insecure Credentials for "monitor" account with SSH Access On IDC SFX2100 Sa

IV. Related Vulnerabilities

Same product: IDC SFX2100 SuperFlex Satellite Receiver
Same vendor: International Datacasting Corporation (IDC)
Same weakness: CWE-798

V. Comments for CVE-2026-28778

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