CVE-2026-29126: International Datacasting SFX2100 Satellite Receiver · Incorrect Permissions
Affects International Datacasting SFX2100 Satellite ReceiverSource CVE Database V5
Not known to be exploited · CVSS 8.5 High.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 3% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
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:UExploitation evidence
Disclosed: evidence found.
CVE published 5 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| International Datacasting CorporationSFX2100 Satellite Receiver | Affected
| Fixed in– |
AI-suggested
- Immediately audit and correct file permissions on /etc/udhcpc/default.script to restrict write access to root only (e.g., chmod 755 or stricter).
- Implement file integrity monitoring on critical scripts and configuration files to detect unauthorized changes.
- Limit local access to trusted personnel and secure physical and remote access channels to the satellite receivers.
- Employ network segmentation to isolate satellite receivers from general user networks, reducing the risk of local attacker presence.
- Monitor DHCP lease events and system logs for unusual activity that may indicate exploitation attempts.
- Engage with IDC for official patches or firmware updates addressing this vulnerability and apply them promptly once available.
- Consider deploying host-based intrusion detection systems (HIDS) tailored for embedded devices to detect privilege escalation attempts.
- Review and harden other scripts and binaries with elevated privileges to prevent similar permission misconfigurations.
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.