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AndroidOperating system · Google

CVE-2022-42764

MEDIUM · 5.5 CVSS v3.1 Published 2022-12-06
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
57/100
Remediation priority · Elevated
Zero-click

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 · unedited
In wlan driver, there is a possible missing bounds 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 confidence

A missing bounds check in the WLAN driver could allow a local attacker to trigger a buffer overflow or out-of-bounds memory access, potentially causing the WLAN services to crash or become unavailable. The vulnerability requires local access and results in denial of service rather than code execution, consistent with the medium CVSS rating.

MitigationApply the vendor-supplied patch for the affected WLAN driver version to add proper bounds validation before memory access operations, and verify WLAN service stability after deployment.

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
AndroidOperating system
Affected:= 10.0= 11.0= 12.0

CVSS 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 checks

Work through these to decide whether this CVE applies to you.

  1. Verify Android version
    Go to Settings > About Phone > Android version and note the exact version number
    Affected if The device is running Android 10.0, 11.0, or 12.0 exactly (not newer patch versions)
  2. Confirm WLAN driver is present
    Check for the WLAN driver module in /system/lib/modules/ or via 'lsmod | grep wlan' command in a root-enabled terminal
    Affected if A WLAN driver module exists and is loaded in the kernel
  3. Verify WLAN functionality is enabled
    Check if WLAN is turned on in Settings > Network & Internet > Wi-Fi, or check wlan0 interface status via 'ip link show wlan0'
    Affected if WLAN is enabled or the wlan0 network interface is active

A device is affected if it runs Android 10.0, 11.0, or 12.0 and has an active WLAN driver loaded, as the missing bounds check in the driver can be triggered through local WLAN operations.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply the vendor-supplied patch for the affected WLAN driver version to add proper bounds validation before memory access operations, and verify WLAN service stability after deployment.

Fix this in Android Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2022-42764 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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