What is the CVSS score of CVE-2026-29121?

CVE-2026-29121 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Is there a public PoC exploit available for CVE-2026-29121?

Yes, a public proof-of-concept exploit is available for CVE-2026-29121. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-29121?

Within 24 hours: Inventory all IDC SFX2100 devices in production and document their network role and data sensitivity. Within 7 days: Implement strict physical and logical access controls to limit local user access; restrict SSH/console access to privileged accounts only and enforce multi-factor authentication. Within 30 days: Evaluate replacement or isolation options; contact IDC for patch timelines; consider air-gapping critical SFX2100 units if business operations permit.

Sfx2100 Firmware CVE-2026-29121

HIGH

Improper Privilege Management (CWE-269)

2026-03-05 b7efe717-a805-47cf-8e9a-921fca0ce0ce

Privilege Escalation Sfx2100 Firmware Datacast

7.8

CVSS 3.1 · NVD

View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

Access

Local user executes setuid /sbin/ip binary
Exploit

Leverage GTFObins technique
Execution

Read sensitive root-owned files
Impact

Escalate privileges to root

Vulnerability Assessment

Weakness	CWE CWE-269 OWASP Top 10:2025 A06:2025 - Insecure Design ASVS 5.0 V8 - Authorization Least privilege enforcement MITRE ATT&CK 1 technique across 1 tactic: Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Exploitation Conditions	IDC SFX2100 satellite receiver with /sbin/ip binary installed with setuid bit set; local user account required to execute the binary
Impact	CVSS 7.8 (HIGH). Attack vector: Local. Complexity: Low. Privileges required: Low. User interaction: None. Exploitable via local access. Public exploit/POC available.
Exploit ScenarioDerived	An attacker could exploit this vulnerability to compromise the affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

The setuid bit on the /sbin/ip utility in IDC SFX2100 satellite receiver firmware allows local users to execute privileged operations as root, enabling unauthorized file reads and potential privilege escalation attacks. Public exploit code exists for this vulnerability, and affected users have no available patch. This vulnerability impacts any local user with access to the device.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 22:06 CVSS 7.8

RemediationAI

Monitor vendor advisories for a patch.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Classified as CWE-269 (Improper Privilege Management). Affects Sfx2100 Firmware. International Data Casting (IDC) SFX2100 satellite receiver comes with the /sbin/ip utility installed with the setuid bit set. This configuration grants elevated privileges to any local user who can execute the binary. A local actor is able to use the GTFObins resource to preform privileged file reads as the root user on the local file system and may potentially lead to other avenues for preforming privileged actions.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.8 HIGH

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

PoC Detected

Mar 11, 2026 - 18:35 vuln.today

Public exploit code

CVE Published

Mar 05, 2026 - 01:15 nvd

HIGH 7.8

DescriptionCVE.org

International Data Casting (IDC) SFX2100 satellite receiver comes with the /sbin/ip utility installed with the setuid bit set. This configuration grants elevated privileges to any local user who can execute the binary. A local actor is able to use the GTFObins resource to preform privileged file reads as the root user on the local file system and may potentially lead to other avenues for preforming privileged actions.

Executive ViewAI

Why It Matters

IDC SFX2100 satellite receivers in our environment are vulnerable to local privilege escalation attacks due to misconfigured system utilities. Any user with local access to an affected device can gain root-level control, potentially compromising network integrity and enabling lateral movement. This risk is elevated by the public availability of exploit code and the absence of a vendor patch.

Business Impact: High

Compensating Controls

Restrict local shell access through PAM configuration and login restrictions; disable unnecessary local user accounts; implement file integrity monitoring on /sbin/ip to detect exploitation attempts; enforce network segmentation to isolate satellite receiver management traffic; deploy host-based intrusion detection on affected systems; remove or restrict setuid bit on /sbin/ip if functional impact is acceptable; monitor system logs for privilege escalation attempts.

Threat Intelligence Overview

EPSS Score

0.0%

Top 95% exploitable

Exploit

POC

Public exploit code exists

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC Yes

EPSS 0.0%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

Poc

System Exposure· derived

Small

Automatable· derived

Human Impact

High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +39

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Privilege Escalation HIGH

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.