Unauthenticated RCE via SNMP Default Writable Community String
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| International Datacasting Corporation (IDC) | SFX2100 Series SuperFlex SatelliteReceiver | SFX2100 | — | No fix listed | CNA |
- SFX2100 Series SuperFlex SatelliteReceiver VendorInternational Datacasting Corporation (IDC) Affected SFX2100 Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:datacast:sfx2100_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | International Datacasting Corporation (IDC) |
| cpe:2.3:h:datacast:sfx2100:-:*:*:*:*:*:*:* | not specified by NVD | Running on | International Datacasting Corporation (IDC) |
- cpe:2.3:o:datacast:sfx2100_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·International Datacasting Corporation (IDC)
- cpe:2.3:h:datacast:sfx2100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·International Datacasting Corporation (IDC)
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-28775
- 2026-10-03 Alias added: GHSA-rvxp-rc2j-v2h6
References
More International Datacasting Corporation (IDC) Sfx2100 Firmware vulnerabilities
- TI-2026-23266 Incorrect Permission Assignment(777) on `monitor` Users Home Directory Containing SUID Root Binaries in IDC SFX2100 CVSS 4.0CRITICAL 9.2
- TI-2026-23267 IDC SFX2100 Satellite Receiver bgpd/ospfd/ripd/zebra Config Credential Disclosure via World-Readable Files CVSS 4.0HIGH 8.6
- TI-2026-23265 World-Writable, Root Owned/Run `/etc/udhcpc/default.script` in IDC SFX2100 Satellite Receiver Leads To Potential LPE CVSS 4.0HIGH 8.5
- TI-2026-22969 Authenticated OS Command Injection via Traceroute Utility leads to Root RCE CVSS 4.0CRITICAL 9.3
- TI-2026-22968 Authenticated OS Command Injection via Ping Utility Leading to RCE as Root CVSS 4.0CRITICAL 9.3
- TI-2026-22972 Hardcoded and Insecure Credentials for "User" Local Account with SSH Access On IDC SFX2100 Satellite Receiver CVSS 4.0CRITICAL 9.2
Sources
- CVE-2026-28775 · CVE Program
- CVE-2026-28775 · NVD
- FIRST EPSS
- GHSA-rvxp-rc2j-v2h6 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences