CVE-2020-9240
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 · uneditedTaurus-AN00B versions earlier than 10.1.0.156(C00E155R7P2) have a buffer overflow vulnerability. A function in a module does not verify inputs sufficiently. Attackers can exploit this vulnerability by sending 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 · moderate confidenceA buffer overflow vulnerability exists in Taurus-AN00B devices due to insufficient input validation in a function within a module. Attackers can exploit this by sending specific crafted requests, potentially compromising 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< 10.1.0.156CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 device modelCheck if the target device is the Huawei Taurus-AN00B model. This can typically be found in device settings under 'About Phone' or by checking the device label on the device itself.Affected if The device is NOT a Taurus-AN00B model - other Huawei models are not affected by this specific vulnerability.
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Check firmware versionNavigate to Settings > About Phone on the device, or use ADB commands such as 'getprop ro.build.version.emui' or 'getprop ro.build.version.huawei' to retrieve the installed firmware version.Affected if The firmware version cannot be determined or the device settings are inaccessible.
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Compare version to affected rangeCompare the installed firmware version number to 10.1.0.156. Note the full version format may appear as 10.1.0.156(C00E155R2) or similar variants - focus on the base version number 10.1.0.156.Affected if The installed version is 10.1.0.156 or higher (for example, 10.1.0.156(C00E155R2) or later), as these versions are not within the affected range.
The device is affected only if it is a Huawei Taurus-AN00B model running firmware version lower than 10.1.0.156.
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
Update the device firmware to version 10.1.0.156(C00E155R2) or later to remediate this vulnerability.
- Consultation4.0 h
- Implementation8.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,880.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-9240 — 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-2020-9240 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
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