CVE-2023-30354
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 · uneditedShenzen Tenda Technology IP Camera CP3 V11.10.00.2211041355 does not defend against physical access to U-Boot via the UART: the Wi-Fi password is shown, and the hardcoded boot password can be inserted for console access.
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 Tenda CP3 IP Camera exposes a UART debug interface that provides unauthenticated access to the U-Boot bootloader. An attacker with physical access can connect to these pins, view the Wi-Fi password in plaintext, and use a known hardcoded boot password to obtain full console/root access to 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= 11.10.00.2211041355CVSS 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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Identify the device modelLocate the device label or check the device management interface to confirm the model is Tenda CP3Affected if The device is not a Tenda CP3 model
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Check the firmware versionAccess the device web interface or check the admin panel for the firmware version informationAffected if The firmware version is 11.10.00.2211041355
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Physically inspect the device for UART pinsOpen the device casing and examine the PCB for exposed UART pins (typically 4 pins in a row: TX, RX, VCC, GND) near the edge of the boardAffected if UART pins are present and accessible on the circuit board
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Verify UART interface is activeConnect a USB-to-serial adapter to the suspected UART pins and use terminal software (e.g., minicom, putty) at 115200 baud to check if the bootloader outputs text during bootAffected if The UART interface responds and displays bootloader output without authentication
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Check for hardcoded boot passwordAttempt to access the U-Boot console via UART and observe if a hardcoded password is required, or extract the firmware and analyze the bootloader configuration for embedded credentialsAffected if The bootloader accepts a known hardcoded password for console access
A defender is affected if they possess a Tenda CP3 device running firmware 11.10.00.2211041355 with an accessible UART debug interface that provides unauthenticated U-Boot access with a hardcoded password.
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 dataPhysical security measures should be implemented to restrict access to the device. Additionally, the manufacturer should release firmware that disables the UART interface in production builds, removes hardcoded credentials, and implements proper bootloader authentication.
- Consultation4.0 h
- Implementation16.0 h
- Testing8.0 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 $8,960.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-30354 — 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-2023-30354 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
- No weaponised exploit code, or anything meant to cause harm
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