CVE-2022-42783
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 check in the wlan driver could allow a local attacker to trigger a denial of service by providing insufficient or malformed parameters, causing wlan services to become unresponsive or crash.
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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Identify Android OS versionCheck the device settings: Navigate to Settings > About Phone > Android version, or run 'getprop ro.build.version.release' via ADB shellAffected if The version displayed is exactly 10.0, 11.0, or 12.0
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Verify wlan driver is presentCheck if the wlan driver module exists on the device by running 'ls -la /system/lib/modules/wlan.ko' or similar wlan-related kernel modules via ADB shellAffected if Wlan driver module is present and loaded on an affected Android version
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Confirm wlan service is activeCheck wlan service status via ADB: run 'dumpsys wifi' or check for wpa_supplicant process with 'ps -A | grep wpa'Affected if Wlan service is running on a device with Android version 10.0, 11.0, or 12.0
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Review wlan driver logs for anomaliesCollect kernel logs via 'dmesg' or logcat with 'adb logcat -d | grep wlan' to look for parameter validation errors or crash indicatorsAffected if Logs show wlan driver errors, crashes, or 'invalid parameter' messages on affected versions
The device is affected if it runs Android 10.0, 11.0, or 12.0 and contains an active wlan driver, since the missing parameter validation flaw exists in that specific driver component for these versions.
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 dataContact the device/vendor for available firmware or driver updates that address this vulnerability; until a patch is available, monitor wlan service stability and consider network segmentation to limit local attack surface.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-42783 — 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-2022-42783 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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