CVE-2016-8762
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 TrustZone driver in Huawei P9 phones with software Versions earlier than EVA-AL10C00B352 and P9 Lite with software VNS-L21C185B130 and earlier versions and P8 Lite with software ALE-L02C636B150 and earlier versions has an input validation vulnerability, which allows attackers to cause the system to restart.
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 confidenceThe TrustZone driver in affected Huawei P9, P9 Lite, and P8 Lite phones contains an input validation vulnerability. Attackers can exploit improper validation of inputs passed to the TrustZone driver to trigger a system restart, resulting in denial of 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 dataall versions<= vns-l21c185b130<= ale-l02c636b150CVSS 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
- Required
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.0/AV:L/AC:L/PR:L/UI:R/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.
-
Identify your Huawei device modelGo to Settings > About Phone to view the model number (e.g., P9, P9 Lite, P8 Lite)Affected if The device is not one of P9, P9 Lite, or P8 Lite - then you are not affected by this specific CVE
-
Check the installed firmware versionNavigate to Settings > About Phone > Version to display the build number or firmware versionAffected if You cannot determine the firmware version - proceed with caution as the vulnerability status cannot be confirmed
-
Compare version against affected rangesCompare your firmware build number to the affected versions: P9 (all versions), P9 Lite (versions up to and including vns-l21c185b130), P8 Lite (versions up to and including ale-l02c636b150)Affected if Your device is a P9 (any version), or P9 Lite with version <= vns-l21c185b130, or P8 Lite with version <= ale-l02c636b150 - you are likely affected by this TrustZone driver vulnerability
-
Confirm TrustZone hardware feature presenceTrustZone is a hardware-based security feature on affected ARM-based Huawei devices; it is enabled by default and cannot be disabled through software settingsAffected if The device does not support TrustZone - the vulnerability does not apply as the attack surface does not exist
If your device is a Huawei P9 (any version), P9 Lite (version vns-l21c185b130 or earlier), or P8 Lite (version ale-l02c636b150 or earlier), your environment is affected by this TrustZone driver input validation vulnerability that can be exploited to cause repeated system restarts.
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 dataUsers should update their device firmware to the specified versions (P9: EVA-AL10C00B352 or later, P9 Lite: VNS-L21C185B130 or later, P8 Lite: ALE-L02C636B150 or later) to receive the TrustZone driver patch.
- Consultation4.0 h
- Implementation16.0 h
- Testing8.0 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 $8,960.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-8762 — 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-2016-8762 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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
- No spam, self-promotion, credentials, or personal data