CVE-2022-47457
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 · uneditedIn wlan driver, there is a possible missing params check. This could lead to local denial of service in wlan services.
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 missing parameter validation vulnerability exists in a WLAN driver where input parameters are not properly checked before use. This could allow a local attacker to trigger a denial of service by providing malformed or missing parameters that cause the WLAN service to crash or become unresponsive.
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= 10.0= 11.0= 12.0CVSS 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
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/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.
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Check Android versionGo to Settings > About Phone > Android version, or run 'getprop ro.build.version.release' via ADB shellAffected if The device is running Android 10.0, 11.0, or 12.0 exactly as listed in the affected versions
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Identify WLAN driver moduleRun 'getprop | grep wlan' or check /sys/module/ for wlan-related modules via ADB shellAffected if A WLAN driver module is present and loaded on the device
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Check WLAN service stabilityReview system logs with 'logcat -d | grep -i wlan' or 'dmesg | grep wlan' via ADB shell for crash reports, kernel panics, or service restart eventsAffected if WLAN service crashes, unexpected restarts, or error messages related to parameter handling are present in logs
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Verify parameter validation statusCheck if vendor security patches for CVE-2022-47457 have been applied by reviewing the Android Security Patch Level in Settings > About Phone > Security patch levelAffected if The device security patch level is earlier than the vendor release that addresses this CVE and WLAN crashes are occurring
A device is affected if it runs Android 10.0, 11.0, or 12.0, has an active WLAN driver, and exhibits WLAN service crashes or instability without the corresponding security patch applied.
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 dataApply vendor-provided patches for the WLAN driver that add proper parameter validation checks. Until the patch is available, monitor WLAN service stability and avoid untrusted inputs to the driver.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,088.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-47457 — 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-2022-47457 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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