CVE-2020-36602
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 · uneditedThere is an out-of-bounds read and write vulnerability in some headset products. An unauthenticated attacker gets the device physically and crafts malformed message with specific parameter and sends the message to the affected products. Due to insufficient validation of message, which may be exploited to cause out-of-bounds read and write.
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 · moderate confidenceOut-of-bounds read and write vulnerability in headset products caused by insufficient validation of message parameters. An unauthenticated attacker with physical access can send malformed messages with specific parameters to trigger memory corruption via out-of-bounds read/write operations.
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= 1.0.0.576= 1.0.0.577= 1.0.0.581= 1.0.0.586= 1.0.0.588= 1.0.0.606= 1.0.0.1= 1.0.0.2= 1.0.0.3= 1.0.0.4= 1.0.0.5= 1.0.0.66\(vn2-sp11\)= 1.0.0.66\(vn2-sp15\)= 1.0.0.66\(vn2-sp17\)= 1.0.0.66\(vn2-sp21\)= 1.0.0.66\(vn2-sp27\)= 1.0.0.66\(vn2-sp29\)= 1.0.0.66\(vn2-sp31\)= 1.0.0.66\(vn2-sp33\)= 1.0.0.106= 1.0.0.116= 1.0.0.202= 1.0.0.208CVSS 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
- Physical
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
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 headset firmware versionAccess the device settings or administrative interface to locate the firmware version information. This is typically found under 'About', 'Device Info', or 'Firmware' menu sections on the headset management console or companion application.Affected if The displayed firmware version matches one of the affected versions: 1.0.0.576, 1.0.0.577, 1.0.0.581, 1.0.0.586, 1.0.0.588, 1.0.0.606 for Hota models; 1.0.0.1 through 1.0.0.5 for Bi Acc Report models; or 1.0.0.66 (any vn2-sp variant), 1.0.0.106, 1.0.0.116, 1.0.0.202, 1.0.0.208 for Cm H Shark Bd mode
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Confirm the headset model matches affected product lineVerify the exact model name of the Huawei headset device. Check the product label, packaging, or device settings for the model identifier.Affected if The device model contains 'Hota Cm H Shark Bd', 'Bi Acc Report', or 'Cm H Shark Bd' in the model name, combined with a vulnerable firmware version from step 1.
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Verify physical access exposureAssess whether the headset or its base station is deployed in areas where unauthorized individuals could gain physical access to send malicious messages directly to the device.Affected if The device is accessible to persons who are not trusted administrators, making physical proximity to the device possible for an attacker.
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Check for message processing logging or anomaly detectionIf available, review device logs, event logs, or network captures for any malformed message entries, unexpected memory access errors, or crashes that correspond to the timing of suspicious physical access events.Affected if Logs show evidence of malformed message handling failures, memory access violations, or unexpected device resets following physical access incidents.
A defender is affected if their Huawei headset device runs one of the specific firmware versions listed AND the device could be accessed physically by an unauthenticated attacker to send malformed messages.
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 firmware/patch when available. Until then, restrict physical access to affected devices and monitor for unauthorized physical tampering.
- Consultation4.0 h
- Implementation8.0 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-2020-36602 — 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-2020-36602 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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