CVE-2020-9237
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 · uneditedHuawei smartphone Taurus-AL00B with versions earlier than 10.1.0.126(C00E125R5P3) have a user after free vulnerability. A module is lack of lock protection. Attackers can exploit this vulnerability by launching specific request. This could compromise normal service of the affected device.
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 confidenceUser-after-free vulnerability in Huawei smartphone Taurus-AL00B where a module lacks proper lock protection, allowing attackers to exploit via specific requests to compromise the device's normal service.
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< 10.1.0.126\(c00e125r5p3\)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 Taurus-AL00BCheck the device model via Settings > About Phone > Model Number, or run `getprop ro.product.model` via ADBAffected if Model number is not Taurus-AL00B (different models have different patch statuses)
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Retrieve the firmware build versionGo to Settings > About Phone > Version > Build Number, or run `getprop ro.build.display.id` via ADB to see the full firmware version stringAffected if Unable to retrieve a firmware version string from the device
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Compare firmware version against the affected rangeCompare the installed firmware version to 10.1.0.126(C00E125R5P3). Check if the version is earlier than this build, noting that version comparison should account for the full version string including the build ID (c00e125r5p3)Affected if Firmware version is < 10.1.0.126(C00E125R5P3) , for example, 10.1.0.123(C00E125r5p2) or any earlier build
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Verify the EMUI system versionRun `getprop ro.build.version.emui` via ADB to obtain the EMUI version details, which may include additional version information beyond the build numberAffected if EMUI version is not available or indicates an older EMUI 10.x release prior to the patched version
The device is affected if it is a Huawei Taurus-AL00B with firmware build version earlier than 10.1.0.126(C00E125R5P3), as this is the version where lock protection was added to the vulnerable module.
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 data10.1.0.126
Update Huawei Taurus-AL00B to version 10.1.0.126(C00E125R5P3) or later to obtain the vendor patch that adds lock protection to the vulnerable module.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-9237 — 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-2020-9237 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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