CVE-2026-28775Public exploitNetwork attack vector

Unauthenticated root command execution via writable SNMP

Published Mar 4, 2026 · Updated Mar 4, 2026

Remote code execution in IDC SFX2100 receivers allows remote attackers to execute root commands through the SNMP service. The default read/write private community lets unauthenticated SNMP SET requests create a NET-SNMP-EXTEND-MIB entry that invokes /bin/sh, and an MIB walk runs it under the root-owned snmpd process. Network access to SNMP is the only gate; successful exploitation gives arbitrary operating system command execution as root.

CVSS severity10.0
Critical
EPSS probability1.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Remote code execution in IDC SFX2100 receivers allows remote attackers to execute root commands through the SNMP service. The default read/write private community lets unauthenticated SNMP SET requests create a NET-SNMP-EXTEND-MIB entry that invokes /bin/sh, and an MIB walk runs it under the root-owned snmpd process. Network access to SNMP is the only gate; successful exploitation gives arbitrary operating system command execution as root.

The record

CVE
CVE-2026-28775
Published
Mar 4, 2026
Updated
Mar 4, 2026
Vendor
International Datacasting Corporation
Product
SFX2100 SuperFlex Satellite Receiver
Classifications
CWE-1188, T1059.004, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=SFX2100

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

International Datacasting Corporation · SFX2100 SuperFlex Satellite Receiverversion=SFX2100

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0GridwareCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1188Initialization of a Resource with an Insecure Default
T1059.004Unix Shell
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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