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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.

PUBLISHED Reserved 2026-03-04 | Published 2026-03-05 | Updated 2026-03-05 | Assigner Gridware




HIGH: 8.5CVSS: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

Problem types

CWE-732 Incorrect Permission Assignment for Critical Resource

Product status

Default status
affected

SFX2100
affected

Credits

Abdul Mhanni finder

References

www.abdulmhsblog.com/posts/spfx-vulnrabilities/

cve.org (CVE-2026-29126)

nvd.nist.gov (CVE-2026-29126)

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