CVE-2026-29126

HIGH
2026-03-05 b7efe717-a805-47cf-8e9a-921fca0ce0ce
7.8
CVSS 3.1
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CVSS Vector

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

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 22:06 vuln.today
PoC Detected
Mar 11, 2026 - 18:34 vuln.today
Public exploit code
CVE Published
Mar 05, 2026 - 02:16 nvd
HIGH 7.8

Tags

Privilege Escalation Sfx2100 Firmware

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.

Analysis

Sfx2100 Firmware versions up to - is affected by incorrect permission assignment for critical resource (CVSS 7.8).

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Remediation

Within 24 hours: Inventory all Sfx2100 devices in production and development environments; isolate or restrict network access to affected systems if operationally feasible. Within 7 days: Implement compensating controls including network segmentation, access logging, and WAF rules to block exploitation attempts; contact vendor for patch timeline. …

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Priority Score

59
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +39
POC: +20

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CVE-2026-29126 vulnerability details – vuln.today
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