CVE-2026-29126 PUBLISHED

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

Assigner: Gridware
Reserved: 04.03.2026 Published: 05.03.2026 Updated: 05.03.2026

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.

Metrics

CVSS 4.0

CVSS Vector: 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
CVSS Score: 8.5

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	Low	Confidentiality	High
Attack Complexity	Low	Integrity	Low	Integrity	High
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	International Datacasting Corporation
Product	SFX2100 Satellite Receiver
Versions	Default: affected Version SFX2100 is affected

Credits

Abdul Mhanni finder

References

https://www.abdulmhsblog.com/posts/sfx2100-vulns/

Problem Types

CWE-732 Incorrect Permission Assignment for Critical Resource CWE

Impacts

CAPEC-233 Privilege Escalation