CVE-2020-9125
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-bound read vulnerability in huawei smartphone Mate 30 versions earlier than 10.1.0.156 (C00E155R7P2). An attacker with specific permission can exploit this vulnerability by sending crafted packet with specific parameter to the target device. Due to insufficient validation of the parameter, successful exploit can cause the device to behave abnormally.
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 vulnerability in Huawei Mate 30 smartphones due to insufficient validation of parameters in network packets. An attacker with specific permissions can send crafted packets containing specific parameters to trigger the vulnerability, causing abnormal device behavior.
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< 10.1.0.156\(c00e155r7p2\)CVSS 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
- Local
- Complexity
- Low
- Privileges
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:H/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 is Huawei Mate 30Go to Settings > About Phone and verify the model name displays 'Mate 30' or 'Mate 30 Pro' or similar Mate 30 variantAffected if Device is not a Huawei Mate 30 variant, the device is not affected by this specific CVE
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Locate firmware version in device settingsNavigate to Settings > About Phone > Version. Record the Build Number or Software Version displayedAffected if Unable to locate or read the firmware version from the device settings
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Compare installed version against affected rangeCompare your recorded Build Number/Software Version to the affected range: versions earlier than 10.1.0.156(C00E155R7P2) are vulnerable. Note that the version must be exactly 10.1.0.156(C00E155R7P2) or later to be patchedAffected if Installed version is numerically lower than 10.1.0.156 (for example, 10.0.0.100 or 10.1.0.100) or displays a different build identifier that precedes C00E155R7P2
If the device is a Huawei Mate 30 and the installed firmware version is earlier than 10.1.0.156(C00E155R7P2), the device is affected by this CVE.
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 data10.1.0.156
Apply the vendor-supplied system update to version 10.1.0.156 (C00E155R7P2) or later to remediate the vulnerability. Verify the update has been successfully installed and monitor device behavior.
- Consultation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-9125 — 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-2020-9125 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
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