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CVE-2026-28777— Hardcoded and Insecure Credentials for "User" Local Account with SSH Access On IDC SFX2100 Satellite Receiver

Quick assessment

Affected
International Datacasting Corporation (IDC) SFX2100 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user账户存在弱密码，可能导致未经授权的SSH访问。

AI Predicted 9.8 Difficulty: Trivial EPSS 0.65% · P50

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-28777

Vulnerability Information
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Vulnerability Title
Hardcoded and Insecure Credentials for "User" Local Account with SSH Access On IDC SFX2100 Satellite Receiver
Source: CVE Program / CVE List V5
Vulnerability Description
International Datacasting Corporation (IDC) SFX2100 Satellite Receiver, trivial password for the `user` (usr) account. A remote unauthenticated attacker can exploit this to gain unauthorized SSH access to the system, while intially dropped into a restricted shell, an attacker can trivially spawn a complete pty to gain an appropriately interactive shell.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
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user账户存在弱密码，可能导致未经授权的SSH访问。
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) SFX2100 Satellite Receiver SFX2100 -

II. Public POCs for CVE-2026-28777

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III. Intelligence Information for CVE-2026-28777

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Security Blog Posts for CVE-2026-28777 (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-2026-28776 Hardcoded and Insecure Credentials for "monitor" account with SSH Access On IDC SFX2100 Sa
CVE-2026-28778 Hardcoded FTP Credentials and LPE(via Insecure Permissions) for `xd` Local Account on IDC

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-28777

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