CVE-2026-29126
World-Writable, Root Owned/Run `/etc/udhcpc/default.script` in IDC SFX2100 Satellite Receiver Leads To Potential LPE
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.
INFO
Published Date :
March 5, 2026, 2:16 a.m.
Last Modified :
March 5, 2026, 6:16 a.m.
Remotely Exploit :
No
Source :
b7efe717-a805-47cf-8e9a-921fca0ce0ce
Affected Products
The following products are affected by CVE-2026-29126
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | HIGH | b7efe717-a805-47cf-8e9a-921fca0ce0ce | ||||
| CVSS 4.0 | HIGH | b7efe717-a805-47cf-8e9a-921fca0ce0ce |
Solution
- Remove world-write permissions from the script.
- Set appropriate ownership for the script.
- Ensure script integrity to prevent modification.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-29126.
| URL | Resource |
|---|---|
| https://www.abdulmhsblog.com/posts/sfx2100-vulns/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-29126 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-29126
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-29126 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-29126 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by b7efe717-a805-47cf-8e9a-921fca0ce0ce
Mar. 05, 2026
Action Type Old Value New Value Added Reference https://www.abdulmhsblog.com/posts/sfx2100-vulns/ Removed Reference https://www.abdulmhsblog.com/posts/spfx-vulnrabilities/ -
New CVE Received by b7efe717-a805-47cf-8e9a-921fca0ce0ce
Mar. 05, 2026
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:X/RE:X/U:X Added CWE CWE-732 Added Reference https://www.abdulmhsblog.com/posts/spfx-vulnrabilities/