CVE-2019-5211
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 · uneditedThe Huawei Share function of P20 phones with versions earlier than Emily-L29C 9.1.0.311 has an improper file management vulnerability. The attacker tricks the victim to perform certain operations on the mobile phone during file transfer. Because the file is not properly processed, successfully exploit may cause some files on the victim's mobile phone are deleted.
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 confidenceThe Huawei Share function in P20 phones versions earlier than Emily-L29C 9.1.0.311 has an improper file management vulnerability. During file transfer, files are not properly processed, allowing an attacker who tricks the victim into performing certain operations during the transfer to cause deletion of some files on the victim's 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< emily-l29c_9.1.0.311\(c10e2r1p13t8\)< emily-l29c_9.1.0.311\(c461e2r1p11t8\)< emily-l29c_9.1.0.311\(c605e2r1p12t8\)< emily-l29c_9.1.0.311\(c432e7r1p11t8\)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
- Adjacent
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/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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Confirm device model is Huawei P20Go to Settings > About Phone > Model Number (or Device name) and verify the device is Huawei P20Affected if Device is not a Huawei P20 model, then not affected by this specific CVE
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Check current firmware versionGo to Settings > About Phone > Version > Build Number. Look for a build number that starts with one of: emily-l29c_9.1.0.311(c10e2r1p13t8), emily-l29c_9.1.0.311(c461e2r1p11t8), emily-l29c_9.1.0.311(c605e2r1p12t8), or emily-l29c_9.1.0.311(c432e7r1p11t8)Affected if Build number matches any of these four specific builds and is earlier than 9.1.0.311 in the full version string
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Determine if firmware version is vulnerableCompare the full firmware version string to the affected threshold: emily-L29C 9.1.0.311. Any version number lower than 9.1.0.311 in the emily-L29C variant is potentially affected.Affected if Installed version is less than Emily-L29C 9.1.0.311 (for example, 9.1.0.300, 9.0.0.150, etc.)
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Verify Huawei Share feature usageCheck if Huawei Share (or Huawei Share OneHop) feature is enabled on the device: Go to Settings > Device Connectivity > Huawei Share, or swipe down from the top of the screen to see if Huawei Share quick toggle is presentAffected if Huawei Share feature is enabled or frequently used, making exploitation possible during file transfers
User is affected if they have a Huawei P20 with firmware version earlier than Emily-L29C 9.1.0.311 and actively use the Huawei Share feature for file transfers.
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 dataUpdate Huawei P20 devices to version Emily-L29C 9.1.0.311 or later to receive the proper file handling fix. Users should avoid performing untrusted operations during Huawei Share file transfers.
- Consultation4.0 h
- Implementation2.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-5211 — 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-2019-5211 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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