CVE-2026-29126 — HIGH (7.8)

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.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Datacast	Sfx2100 Firmware	-
Datacast	Sfx2100	-

Related Weaknesses (CWE)

CWE-732 CWE-863

References

https://www.abdulmhsblog.com/posts/sfx2100-vulns/ExploitThird Party Advisory
https://www.abdulmhsblog.com/posts/sfx2100-vulns/ExploitThird Party Advisory

FAQ

What is CVE-2026-29126?

CVE-2026-29126 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 e...

How severe is CVE-2026-29126?

CVE-2026-29126 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-29126?

Check the references section above for vendor advisories and patch information. Affected products include: Datacast Sfx2100 Firmware, Datacast Sfx2100.