High severity · published Mar 5, 2026
CVE-2026-29126
World-Writable, Root Owned/Run `/etc/udhcpc/default.script` in IDC SFX2100 Satellite Receiver Leads To Potential LPE
7.8
CVSS
0.1%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SS
SFX2100 Satellite Receiver · International Datacasting Corporation
SFX2100 · source: vendor
SF
Sfx2100 Firmware · Datacast
All versions, or not specified · source: NVD
Affected product
SS
SFX2100 Satellite Receiver
International Datacasting Corporation
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-29126
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-29126
Exploit
https://www.abdulmhsblog.com/posts/sfx2100-vulns/
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