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SNMP CVE-2026-28775

CRITICAL
Initialization of a Resource with an Insecure Default (CWE-1188)
2026-03-04 b7efe717-a805-47cf-8e9a-921fca0ce0ce
9.8
CVSS 3.1 · NVD
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Attack ChainAIDerived

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

  1. Access
    Craft SNMP request with private community string
  2. Exploit
    Invoke NET-SNMP-EXTEND-MIB directives
  3. Impact
    Execute arbitrary OS commands as root

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V13 - Configuration Secure default settings
Exploitation Conditions

IDC SFX Series SuperFlex SatelliteReceiver with default SNMP configuration exposing writable 'private' community string and running vulnerable net-snmp version pre-5.8 with SNMP agent running as root.

Impact

CVSS 9.8. Satellite receivers used in broadcast infrastructure.

Exploit ScenarioDerived

Login with known credentials to control satellite receiver.

Act Now Prioritize within 24-48h. Why: CRITICAL severity + public POC available.
No patch listed yet 0.6% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Hardcoded/insecure credentials in IDC SFX Series SuperFlex Satellite Receiver. Multiple accounts with known credentials enable complete device takeover.

Earlier versions of this analysis (1)
v1 Mar 12, 2026 - 22:05 CVSS 9.8

Hardcoded credentials in IDC satellite receiver.

RemediationAI

Apply firmware update. Change all default credentials.

Affects your stack

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

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Technical ContextAI · show details

CWE-798/CWE-1188. Multiple hardcoded accounts in satellite broadcasting equipment.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
PoC Detected
Mar 09, 2026 - 18:24 vuln.today
Public exploit code
CVE Published
Mar 04, 2026 - 08:16 nvd
CRITICAL 9.8

DescriptionCVE.org

An unauthenticated Remote Code Execution (RCE) vulnerability exists in the SNMP service of International Datacasting Corporation (IDC) SFX Series SuperFlex SatelliteReceiver. The deployment insecurely provisions the private SNMP community string with read/write access by default. Because the SNMP agent runs as root, an unauthenticated remote attacker can utilize NET-SNMP-EXTEND-MIB directives, abusing the fact that the system runs a vulnerable version of net-snmp pre 5.8, to execute arbitrary operating system commands with root privileges.

Executive ViewAI

Why It Matters

Organizations operating IDC SFX Series SuperFlex SatelliteReceiver systems face an immediate critical risk: unauthenticated attackers can remotely execute arbitrary code by exploiting a default SNMP configuration. With public exploits available and no vendor patch deployed, any exposed satellite receiver is a direct attack vector that could compromise satellite communications infrastructure and downstream dependent systems.

Business Impact: Severe
Compensating Controls

Disable SNMP service entirely if not operationally required; restrict SNMP access via firewall to authorized management networks only; implement network segmentation to isolate satellite receivers; change default 'private' SNMP community string to a complex value; use SNMPv3 with authentication/encryption if SNMP must remain enabled; deploy IDS/IPS rules to detect SNMP-based RCE attempts; enable detailed logging of all receiver access and SNMP queries for incident detection.

Threat Intelligence Overview

EPSS Score
0.6%
Top 30% exploitable
Exploit
POC
Public exploit code exists
Data Quality
3 sources
Confidence: Low

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 CRITICAL
CISA KEV No
Public POC Yes
EPSS 0.6%
Patch available No
Active threat No
Deciding rule
CRITICAL severity + public POC available
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
Out-of-Cycle
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact
Very High

Priority Score

70
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +49
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)CVE.org

cpe:2.3:o:datacast:sfx2100_firmware:-:*:*:*:*:*:*:*

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