CVE-2024-3757
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 OpenHarmony v4.0.0 and prior versions allow a local attacker cause service crash through integer overflow.
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 confidenceInteger overflow vulnerability in OpenHarmony v4.0.0 and prior allows a local attacker to cause a service crash by triggering the overflow, likely in a calculation or memory allocation context.
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< 4.0.1CVSS 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 OpenHarmony versionRun 'getprop ro.build.version.sdk' or check /system/etc/version.ini, or inspect the 'about' device info via 'hidumper -s 0'Affected if Version is 4.0.0 or prior (anything below 4.0.1)
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Identify affected servicesReview running services via 'hisysevent' logs or check process list with 'ps -A' for vulnerable system servicesAffected if A service that performs integer calculations or memory allocations is running and reachable by local users
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Check for crash logsExamine /data/log/faultlog/faultlog or use 'hilog' to search for crash events around integer overflow or arithmetic error messagesAffected if Recent crash logs show arithmetic overflow errors in system services
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Verify local user accessDetermine if untrusted local users can interact with the affected component by checking user permissions and service ACLsAffected if Local users with limited privileges can trigger the affected calculation or memory allocation path
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Review service configurationInspect the service manifest in /etc/ or /system/etc/ for the component containing the vulnerable integer operationAffected if The vulnerable component is enabled and exposed to local invocation
You are affected if your OpenHarmony version is below 4.0.1 and a service with the integer overflow vulnerability is running and accessible to local users.
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 · scoped4.0.1
Upgrade to a patched version of OpenHarmony if available; otherwise, implement proper integer overflow checks and use safe integer arithmetic functions in the affected component.
OpenHarmony 4.0.1
- Verify current OpenHarmony version by checking system build information or version files
- Review OpenHarmony 4.0.1 release notes for your specific subsystem component (the vulnerability affects the system broadly)
- Update the OpenHarmony SDK and build environment to version 4.0.1
- Rebuild affected system components with the new SDK version
- Deploy and test the updated system in a staging environment before production rollout
- Verify the integer overflow vulnerability is no longer reproducible by confirming the service no longer crashes under the same conditions
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,088.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-3757 — 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-2024-3757 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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