CVE-2022-41580
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 · uneditedThe HW_KEYMASTER module has a vulnerability of not verifying the data read.Successful exploitation of this vulnerability may cause malicious construction of data, which results in out-of-bounds access.
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 · high confidenceThe HW_KEYMASTER module in Android's hardware-backed cryptography implementation fails to validate data before reading it, allowing an attacker to supply maliciously constructed data that triggers out-of-bounds memory access. This is a data validation bypass in a trusted execution environment component that handles cryptographic key operations.
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= 11.0.1= 12.0.0= 2.0CVSS 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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/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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Check Huawei Emui versionNavigate to Settings > About Phone > Version on the Huawei device, or run 'getprop ro.build.version.emui' via ADB shellAffected if The version listed is exactly 11.0.1 or 12.0.0
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Check Huawei HarmonyOS versionNavigate to Settings > About Phone > Version on the Huawei device, or run 'getprop ro.build.version鸿蒙' via ADB shellAffected if The version listed is exactly 2.0
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Identify if HW_KEYMASTER is in useCheck /vendor/lib/hw/ or /system/lib/hw/ directories for keymaster implementations, or inspect keystore debug logs for 'HW_KEYMASTER' references using 'logcat | grep -i keymaster'Affected if The device uses HW_KEYMASTER module for cryptographic operations rather than a software or alternative implementation
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Verify TEE component statusInspect system logs for TEE (Trusted Execution Environment) errors or anomalies related to keymaster operations using 'logcat | grep -i TEE' or 'dmesg | grep -i optee' if applicableAffected if TEE-related errors or warnings appear in logs during cryptographic operations
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Confirm hardware-backed keystore usageRun 'keystore -v' or check Android Keystore status via 'dumpsys keystore' to determine if hardware-backed key operations are enabledAffected if Hardware-backed keystore is active and the device falls within the affected version ranges
The device is affected if it runs Huawei Emui 11.0.1, Emui 12.0.0, or HarmonyOS 2.0 AND utilizes the HW_KEYMASTER module for cryptographic key operations.
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 dataImplement thorough data validation and bounds checking in the HW_KEYMASTER module before any data read operations to ensure all input data is within expected bounds and properly formatted.
- Consultation8.0 h
- Implementation16.0 h
- Testing24.0 h
- Review / QA12.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $16,384.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-41580 — 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-2022-41580 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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