CVE-2022-32656
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: GN20220705035; Issue ID: GN20220705035.
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 confidenceIn the Wi-Fi driver, there is undefined behavior caused by incorrect error handling, which can be exploited for local privilege escalation to System level. The vulnerability requires no user interaction and the attacker already needs local access to the system.
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= 7.6.6.0= 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 chipsetCheck system hardware information or Wi-Fi adapter details to determine if the device uses a Mediatek chipset (Mt5221, Mt7603, Mt7613, Mt7615, Mt7622, Mt7628, Mt7629, or Mt7663)Affected if The system uses any of these Mediatek Wi-Fi chipsets
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Check Wi-Fi driver firmware versionUse vendor-specific tools or system information commands to retrieve the installed Wi-Fi driver firmware version. This is typically found in wireless adapter properties, driver details, or through Mediatek diagnostic utilitiesAffected if The reported firmware version equals 7.6.6.0 on any affected chipset
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Verify Wi-Fi functionality is enabledConfirm that the Wi-Fi driver module or firmware is actively loaded and the wireless interface is present in the systemAffected if Wi-Fi driver is loaded and the wireless interface is available
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 (GN20220705035) which corrects the error handling logic in the Wi-Fi driver. This typically involves updating the Wi-Fi driver firmware or software stack.
- Consultation3.0 h
- Implementation4.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,416.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-32656 — 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-2022-32656 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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