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CVE-2026-29126— World-Writable, Root Owned/Run `/etc/udhcpc/default.script` in IDC SFX2100 Satellite Receiver Leads To Potential LPE

Quick assessment

Affected
International Datacasting Corporation 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/etc/udhcpc/default.script文件权限分配不当，可能导致本地攻击者执行任意命令。

AI Predicted 7.8 Difficulty: Trivial EPSS 0.17% · P6
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I. Basic Information for CVE-2026-29126

Vulnerability Information
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Vulnerability Title
World-Writable, Root Owned/Run `/etc/udhcpc/default.script` in IDC SFX2100 Satellite Receiver Leads To Potential LPE
Source: CVE Program / CVE List V5
Vulnerability Description
Incorrect permission assignment (world-writable file) in /etc/udhcpc/default.script in International Data Casting (IDC) SFX2100 Satellite Receiver allows a local unprivileged attacker to potentially execute arbitrary commands with root privileges (local privilege escalation and persistence) via modification of a root-owned, world-writable BusyBox udhcpc DHCP event script, which is executed when a DHCP lease is obtained, renewed, or lost.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:H/SI:H/SA:H/AU:N/R:U
Source: CVE Program / CVE List V5
Vulnerability Type
关键资源的不正确权限授予
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/etc/udhcpc/default.script文件权限分配不当，可能导致本地攻击者执行任意命令。
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 SFX2100 Satellite Receiver SFX2100 -

II. Public POCs for CVE-2026-29126

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III. Intelligence Information for CVE-2026-29126

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Security Blog Posts for CVE-2026-29126 (2)

Same Patch Batch · International Datacasting Corporation · 2026-03-05 · 8 CVEs total

CVE-2026-29121 `/sbin/ip` Binary given SETUID Permissions on IDC SFX2100 Leading to Potential LPE
CVE-2026-29123 Multiple SUID Root Binaries in `xd` User Home Directory Leading to Potential Local Privile
CVE-2026-29122 `/bin/date` Binary given SETUID Permissions on IDC SFX2100 Leading to Potential LPE
CVE-2026-29125 IDC SFX2100 Satellite Receiver allows unprivileged modification of DNS configuration due t
CVE-2026-29124 Multiple SUID Root Binaries in `monitor` User Home Directory Leading to Potential Local Pr
CVE-2026-29127 Incorrect Permission Assignment(777) on `monitor` Users Home Directory Containing SUID Roo
CVE-2026-29128 IDC SFX2100 Satellite Receiver bgpd/ospfd/ripd/zebra Config Credential Disclosure via Worl

IV. Related Vulnerabilities

Same product: SFX2100 Satellite Receiver
Same vendor: International Datacasting Corporation
Same weakness: CWE-732

V. Comments for CVE-2026-29126

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