CVE-2026-28776
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedInternational Datacasting Corporation (IDC) SFX Series SuperFlex SatelliteReceiver contains hardcoded credentials for the `monitor` account. A remote unauthenticated attacker can use these trivial, undocumented credentials to access the system via SSH. While initially dropped into a restricted shell, the attacker can trivially break out to achieve standard shell functionality.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThe IDC SFX Series SuperFlex SatelliteReceiver ships with hardcoded, undocumented credentials for a 'monitor' account. These credentials allow remote unauthenticated attackers to access the device via SSH. Although the initial access drops into a restricted shell, attackers can trivially break out to obtain full shell functionality, enabling complete system compromise.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE dataall versionsCVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm device model and firmwareIdentify the exact model number (Datacast Sfx2100) and current firmware version running on the device. This can typically be done via the device's web interface, administrative console, or by checking system information through an existing shell access if available.Affected if The device is a Datacast Sfx2100 and is running any firmware version (all versions are affected).
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Verify SSH service exposureDetermine if the SSH service is listening and accessible on the device. Check network configuration, firewall rules, or port scans to see if TCP port 22 (or custom SSH port) is open to the network.Affected if SSH is enabled and accessible from an untrusted network (especially the internet or adjacent networks).
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Check for monitor account existenceAttempt to enumerate or authenticate with a 'monitor' account via SSH. Even without the specific hardcoded credentials, attempt SSH login using username 'monitor' to verify the account exists and accepts authentication.Affected if The 'monitor' account exists and accepts SSH authentication.
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Test hardcoded credential accessIf the monitor account is confirmed to exist, attempt SSH login using the known hardcoded credentials (which are documented in public vulnerability sources for this CVE). A successful login indicates the vulnerability is present.Affected if SSH authentication succeeds with the monitor account using the hardcoded credentials, granting initial access to a restricted shell.
A user is affected if they have a Datacast Sfx2100 device with SSH accessible and the monitor account accepts the hardcoded credentials, allowing unauthenticated remote access.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataImmediately disable or change the hardcoded monitor account credentials, ideally by updating to a patched firmware version if available. If no patch exists, consider network segmentation to limit SSH exposure and implement additional authentication controls.
- Consultation6.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-28776 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-28776 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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