CVE-2022-32659
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 Wi-Fi driver, there is a possible undefined behavior due to incorrect error handling. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: GN20220705066; Issue ID: GN20220705066.
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 Wi-Fi driver vulnerability exists where incorrect error handling leads to undefined behavior, potentially allowing local privilege escalation to System privileges. No user interaction is required for exploitation, though the attacker needs existing System-level access. This is a driver-level flaw in the error path handling logic.
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= 7.6.6.0= 3.1= 3.3= 7.6.6.0= 7.6.6.0= 7.6.6.0= 7.6.6.0= 7.6.6.0= 7.6.6.0CVSS 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
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:H/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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Identify Mediatek Wi-Fi hardware presenceCheck system hardware information for Mediatek wireless adapters. On Linux, use 'lspci' or 'lsusb' to list network devices. On embedded systems, check '/proc/cpuinfo' or device tree information.Affected if A Mediatek Wi-Fi adapter is present in the system
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Determine Wi-Fi chip modelQuery the wireless interface (e.g., using 'iw list', 'ip link show', or chipset identification tools) to identify the specific Mediatek chip model such as Mt7603, Mt7613, Mt7615, Mt7622, Mt7628, Mt7629, or Mt7915.Affected if The chip model matches one of: Mt7603, Mt7613, Mt7615, Mt7622, Mt7628, Mt7629, or Mt7915
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Check Wi-Fi firmware versionExamine the installed Wi-Fi firmware version. On Linux systems, this is typically found in '/lib/firmware/mediatek' or by querying the driver via 'ethtool -i' or similar tools. For embedded Yocto systems, check the firmware package version.Affected if The firmware version is exactly 7.6.6.0 for Mediatek chips, or the Yocto system version is exactly 3.1 or 3.3 with the affected Wi-Fi driver
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Verify driver module is loadedConfirm the Mediatek Wi-Fi driver module is actively loaded and the wireless interface is present. Use 'lsmod' to list loaded modules and check for mediatek/mt7601/mt76 modules, or use 'ip link' to confirm wireless interface existence.Affected if The Mediatek Wi-Fi driver is loaded and the wireless interface is active
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 the vendor patch GN20220705066 to update the Wi-Fi driver. Since this is a local privilege escalation requiring System-level access, prioritize patching systems with elevated local access vectors.
- Consultation3.0 h
- Implementation6.0 h
- Testing5.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-32659 — 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-2022-32659 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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- Version or environment caveats, and links to real fixes
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