Is CVE-2026-28778 actively exploited?

No active exploitation of CVE-2026-28778 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-28778 be exploited remotely?

Yes. CVE-2026-28778 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-28778?

CVE-2026-28778 has a CVSS score of 7.9 (HIGH).

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HIGH

CVE-2026-28778

CWE-798Published: March 4, 2026· Updated: Mar 5, 2026

7.9

CVSS v3.1

EPSS:0.17%probability of exploitation in 30 daysPercentile:38.5th

Official Description

International Datacasting Corporation (IDC) SFX Series SuperFlex Satellite Receiver contains undocumented, hardcoded/insecure credentials for the `xd` user account. A remote unauthenticated attacker can log in via FTP using these credentials. Because the `xd` user has write permissions to their home directory where root-executed binaries and symlinks (such as those invoked by `xdstartstop`) are stored, the attacker can overwrite these files or manipulate symlinks to achieve arbitrary code execution as the root user.

NVD Source

Technical Analysis

CVE-2026-28778 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeX

Impact

Confidentiality

Integrity

Availability

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:H/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