CVE-2025-54642
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 · uneditedIssue of buffer overflow caused by insufficient data verification in the kernel gyroscope module. Impact: Successful exploitation of this vulnerability may affect availability.
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 buffer overflow vulnerability exists in the kernel gyroscope module due to insufficient data verification. The lack of proper input validation on data processed by the gyroscope driver allows an attacker to overflow a buffer, potentially causing a denial of service by crashing the system or triggering unexpected behavior.
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= 13.0.0= 14.0.0= 3.0.0= 3.1.0= 4.0.0CVSS 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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Check your Huawei EMUI versionGo to Settings > About Phone > Version on your Huawei device and note the EMUI build numberAffected if The version displayed is exactly 13.0.0 or 14.0.0
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Check your HarmonyOS versionGo to Settings > About Phone > Version on your Huawei device and note the HarmonyOS build numberAffected if The version displayed is exactly 3.0.0, 3.1.0, or 4.0.0
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Verify gyroscope hardware presenceOpen your device dialer and enter *#*#2846579#*#* to access engineering menu, then navigate to Hardware Test > Gyroscope to confirm the sensor is detectedAffected if The gyroscope sensor is detected and listed as present on your device
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Check gyroscope driver statusUsing ADB shell, run 'ls -la /sys/class/sensors/' to list available sensor interfaces and check for gyroscope-related entriesAffected if Gyroscope sensor interfaces exist in /sys/class/sensors/ indicating the driver is loaded
You are affected if your device runs EMUI 13.0.0/14.0.0 or HarmonyOS 3.0.0/3.1.0/4.0.0 AND has an active gyroscope driver with the sensor hardware present.
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.
dbcve · scopedApply vendor-provided kernel security patches that add proper input validation and bounds checking to the gyroscope module. If no patch is available, consider disabling the gyroscope driver or restricting access to the affected hardware interface.
Latest HarmonyOS/EMUI version beyond 4.0.0 (check Huawei security advisory for exact fixed release)
- Check Huawei's official security advisory at consumer.huawei.com for CVE-2025-54642 to confirm the specific fixed version
- Contact Huawei support or your device manufacturer to obtain the latest security patch for your specific device model
- Apply the latest HarmonyOS or EMUI firmware update that includes the kernel gyroscope buffer overflow fix
- Verify the update was successfully applied by checking the system settings > about phone > software version
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-54642 — 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-2025-54642 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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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.
- 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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