CVE-2015-4422
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 TEEOS module in Huawei Mate 7 (Mate7-TL10) smartphones before V100R001CHNC00B126SP03 allows local users with root permissions to gain privileges or cause a denial of service (memory corruption) via a crafted application.
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 TEEOS (Trusted Execution Environment Operating System) module in Huawei Mate 7 smartphones contains a memory corruption vulnerability. A crafted application running with root permissions can trigger this flaw to escalate privileges or cause a denial of service. The vulnerability exists in versions prior to V100R001CHNC00B126SP03.
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<= v100r001chnc00b123sp03CVSS 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
- High
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:L/AC:H/PR:N/UI:R/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 7Check the phone settings under Settings > About Phone > Model Number to verify the device is a Huawei Mate 7 (model numbers may include MT7-TL00, MT7-CL00, MT7-L09, or similar variants).Affected if Device is not a Huawei Mate 7, then this specific CVE does not apply.
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Check current firmware versionNavigate to Settings > About Phone > Version Number or Settings > About Device > Firmware Version to view the installed firmware build number.Affected if Unable to access firmware version information.
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Compare firmware version against affected rangeCompare the installed version number to the affected range. Versions <= v100r001chnc00b123sp03 are vulnerable. The patched version is V100R001CHNC00B126SP03 or later.Affected if Firmware version is v100r001chnc00b123sp03 or earlier.
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Verify TEEOS module presenceThis vulnerability is in the TEEOS (Trusted Execution Environment Operating System) module. On affected devices, this module handles secure transactions and is typically visible in system information under Security settings or trusted execution environment status.Affected if TEEOS module is present on the device (required for the vulnerability to apply).
The device is affected if it is a Huawei Mate 7 running firmware version v100r001chnc00b123sp03 or earlier.
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 the device firmware to version V100R001CHNC00B126SP03 or later to patch the TEEOS vulnerability.
- Consultation2.0 h
- Implementation1.0 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-2015-4422 — 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-2015-4422 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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