CVE-2026-29126: Datacast SFX2100 Firmware

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Datacast SFX2100 Firmware: affected versions not specified

Published 2026-03-05. Last modified 2026-06-17.