CVE-2026-28775

Unauthenticated RCE via SNMP Default Writable Community String

Assigner: Gridware
Reserved: 03.03.2026 Published: 04.03.2026 Updated: 04.03.2026

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.

Metrics

CVSS Vector: CVSS: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 Score: 10

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	International Datacasting Corporation (IDC)
Product	SFX2100 Series SuperFlex SatelliteReceiver
Versions	Default: unaffected Version SFX2100 is affected

Vendor

International Datacasting Corporation (IDC)

Product

SFX2100 Series SuperFlex SatelliteReceiver

Versions

Default: unaffected

Version SFX2100 is affected

Credits

Abdul Mhanni finder

References

Problem Types

CWE-1188: Insecure Default Initialization of Resource CWE

Impacts

Unauthenticated Remote Code Execution (RCE) as Root