CVE-2021-33017
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 · uneditedThe standard access path of the IntelliBridge EC 40 and 60 Hub (C.00.04 and prior) requires authentication, but the product has an alternate path or channel that does not require authentication.
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 IntelliBridge EC 40 and 60 Hub (versions C.00.04 and prior) contains an authentication bypass vulnerability where an alternate path or channel exists that does not require authentication, despite the standard access path requiring valid credentials. This allows unauthenticated attackers to access the device.
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 data<= c.00.04<= c.00.04CVSS 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
- Adjacent
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:A/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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Identify the device modelLocate the physical device or check network inventory to confirm whether the device is a Philips IntelliBridge EC40 or EC80 HubAffected if The device is an IntelliBridge EC40 or EC80 model
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Check the installed firmware versionAccess the device management interface or check the device firmware version through its web console, CLI, or system information page. Compare the version to the affected range.Affected if The firmware version is C.00.04 or any version prior to C.00.04
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Verify if unauthenticated network access is possibleAttempt to access common device interfaces (web management port, diagnostic ports, or API endpoints) from an untrusted network segment without providing credentialsAffected if Device interfaces are accessible without authentication from untrusted networks
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Review network exposure of management interfacesScan the network for exposed services on the device and confirm whether the management interface is reachable from outside trusted network segmentsAffected if Management interfaces are exposed to untrusted networks without authentication requirements
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Test alternate communication channelsCheck for available services or ports on the device beyond the standard management interface, such as debug ports, API endpoints, or legacy interfacesAffected if Any alternate channel or port allows unauthenticated access to device functions
The environment is affected if a Philips IntelliBridge EC40 or EC80 device is running firmware version C.00.04 or earlier and has an unauthenticated alternate access path exposed to the network.
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 dataApply vendor-provided patches to close the unauthenticated alternate path and ensure all access channels require authentication. If patches are unavailable, implement network segmentation and access controls to restrict access to trusted users only.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-33017 — 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-2021-33017 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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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data