TI-2026-23265 Aliases CVE-2026-29126 GHSA-x4vv-6742-qcpf

World-Writable, Root Owned/Run `/etc/udhcpc/default.script` in IDC SFX2100 Satellite Receiver Leads To Potential LPE

HIGH 70CWE-732Published 2026-03-05 · Updated 2026-03-05

Key facts

Attack vector: Local
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Security bypass
Confidentiality · integrity · availability: Low · Low · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-863.

Summary

Incorrect permission assignment (world-writable file) in /etc/udhcpc/default.script in International Data Casting (IDC) SFX2100 Satellite Receiver allows a local unprivileged attacker to potentially execute arbitrary commands with root privileges (local privilege escalation and persistence) via modification of a root-owned, world-writable BusyBox udhcpc DHCP event script, which is executed when a DHCP lease is obtained, renewed, or lost.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00161 5th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

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 Satellite Receiver	SFX2100 and later	—	No fix listed	CNA

SFX2100 Satellite Receiver VendorInternational Datacasting Corporation (IDC) Affected SFX2100 and later 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-2026-29126
2026-10-03 Alias added: GHSA-x4vv-6742-qcpf

References

Exploit 1

https://www.abdulmhsblog.com/posts/sfx2100-vulns/

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-2026-22970 Unauthenticated RCE via SNMP Default Writable Community String CVSS 4.0CRITICAL 10.0
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

See all 19 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences