CVE-2022-48478
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 facial recognition TA of some products lacks memory length verification. Successful exploitation of this vulnerability may cause exceptions of the facial recognition service.
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 facial recognition Trusted Application (TA) in affected products fails to validate memory length parameters before processing data, allowing potential buffer overflows or memory corruption. This missing boundary check could enable an attacker to trigger service exceptions or potentially execute arbitrary code by supplying malformed input to the facial recognition subsystem.
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= 2.0CVSS 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
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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 HarmonyOS versionCheck system settings > About Phone > HarmonyOS version to verify the installed OS version is exactly 2.0Affected if The system is running HarmonyOS version 2.0 exactly
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Verify facial recognition is enabledCheck device settings for face unlock or facial recognition feature status (Settings > Security > Face Recognition on HarmonyOS devices)Affected if Facial recognition face unlock feature is enabled and configured on the device
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Check facial recognition service logsUse device diagnostics or logcat to search for exceptions related to the facial recognition Trusted Application (TA) service - look for error entries mentioning 'face', 'facial', or 'TA' moduleAffected if Service exceptions, crashes, or anomalous error messages appear in logs related to the facial recognition subsystem
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Review memory operation failuresExamine system and security logs for any memory corruption indicators, buffer overflow warnings, or unexpected service restarts occurring in the facial recognition moduleAffected if Memory-related failures, service exceptions, or unexpected restarts are logged in the facial recognition component
The device is affected if it runs HarmonyOS 2.0 and has facial recognition (face unlock) feature enabled, with potential indicators being service exceptions or memory-related errors in the facial recognition Trusted Application logs.
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 dataVendor must release patched TA firmware that implements proper memory length validation before all memory operations in the facial recognition module.
- Consultation8.0 h
- Implementation4.0 h
- Testing12.0 h
- Review / QA6.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-48478 — 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-2022-48478 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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