CVE-2019-15843
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 · uneditedA malicious file upload vulnerability was discovered in Xiaomi Millet mobile phones 1-6.3.9.3. A particular condition involving a man-in-the-middle attack may lead to partial data leakage or malicious file writing.
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 malicious file upload vulnerability exists in Xiaomi Millet mobile phones 1-6.3.9.3 where a man-in-the-middle attacker can intercept network communications to inject malicious files or partially exfiltrate data during file transfer 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= 1-6.3.9.3CVSS 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
- Network
- Complexity
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:H/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 device modelCheck the device information settings or system properties to confirm the device is a Xiaomi Millet modelAffected if Device is a Xiaomi Millet phone
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Check firmware versionNavigate to Settings > About Phone > MIUI Version (or check via adb: getprop ro.build.version.incremental) and note the version numberAffected if Firmware version falls within range 1-6.3.9.3 (inclusive)
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Verify file transfer functionality is in useCheck if the device has used file transfer, OTA updates, or remote backup features to external serversAffected if File transfer or update features have been used on the device
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Inspect network security configurationExamine the system network settings or app network security config for certificate validation and TLS implementation during file operationsAffected if Certificate pinning is not implemented or TLS validation is missing/disabled for file upload mechanisms
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Test network traffic during file operationsUse a network proxy or packet capture to observe whether file transfers to external servers use valid TLS with proper certificate validationAffected if Network traffic during file transfers lacks proper encryption or certificate validation
The device is affected if it is a Xiaomi Millet running firmware version 1-6.3.9.3 and file transfer or update features are used without proper TLS/certificate pinning protection.
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 dataImplement certificate pinning and TLS/SSL encryption for all network communications, particularly for file upload and update mechanisms; also validate file integrity and origin server authentication before accepting uploaded files.
- Consultation6.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,968.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-15843 — 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-2019-15843 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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