CVE-2026-28777

CRITICALCVSS 9.2/10EPSS 0.49%

Last modified

CVE-2026-28777 is a critical-severity vulnerability rated 9.2/10 on the CVSS scale. International Datacasting Corporation (IDC) SFX2100 Satellite Receiver, trivial password for the `user` (usr) account. A remote unauthenticated attacker can exploit this to gain unauthorized SSH access to the system, while intially dropped into a restricted shell, an attacker can trivially spawn a complete pty to gain an appropriately interactive shell.. EPSS estimates a 0.49% chance of exploitation in the next 30 days.

Description

International Datacasting Corporation (IDC) SFX2100 Satellite Receiver, trivial password for the `user` (usr) account. A remote unauthenticated attacker can exploit this to gain unauthorized SSH access to the system, while intially dropped into a restricted shell, an attacker can trivially spawn a complete pty to gain an appropriately interactive shell.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0
9.2/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability
0.49%

38.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
DatacastSfx2100 FirmwareAll versions

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-28777?
International Datacasting Corporation (IDC) SFX2100 Satellite Receiver, trivial password for the `user` (usr) account. A remote unauthenticated attacker can exploit this to gain unauthorized SSH access to the system, while intially dropped into a restricted shell, an attacker can trivially spawn a complete pty to gain an appropriately interactive shell.
How severe is CVE-2026-28777?
CVE-2026-28777 has a CVSS score of 9.2/10 (CRITICAL severity). The EPSS model estimates a 0.49% probability of exploitation in the next 30 days.
How do I fix CVE-2026-28777?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-28777?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST