CVE-2023-52379
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 · uneditedPermission control vulnerability in the calendarProvider module.Successful exploitation of this vulnerability may affect service confidentiality.
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 permission control vulnerability exists in the calendarProvider module where improper authorization checks allow unauthorized access to calendar data. Successful exploitation enables attackers to read calendar entries they should not have access to, compromising service confidentiality.
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= 12.0.0= 13.0.0= 2.0.0= 2.1.0= 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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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. Record the displayed EMUI version number.Affected if The version is exactly 12.0.0 or 13.0.0
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Check your Huawei HarmonyOS versionGo to Settings > About Phone > Version on your Huawei device. Record the displayed HarmonyOS version number.Affected if The version is exactly 2.0.0, 2.1.0, 3.0.0, 3.1.0, or 4.0.0
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Verify calendar app is in useOpen the native Calendar application on the device and confirm it is functional and has been used to store calendar entries.Affected if Calendar entries exist and the device OS version matches the affected versions listed above
If your device runs EMUI 12.0.0, EMUI 13.0.0, or any HarmonyOS version from 2.0.0 through 4.0.0 and uses the native calendar application, your calendar data may be accessible to unauthorized users due to this permission control flaw.
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 · scopedImplement proper permission validation and access control checks in the calendarProvider module to ensure users can only access calendar data they are authorized to view.
Apply security patch from Huawei; if no patch available, upgrade to newer EMUI/HarmonyOS version beyond 13.0.0 and 3.1.0 respectively
- Check for and apply the latest security patch for your device from Huawei's official security advisory (consumer.huawei.com or device.harmonyos.com)
- Verify your device calendarProvider module permissions after applying the patch
- Confirm the calendarProvider component no longer has overly permissive default access controls
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing4.0 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 $3,328.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-52379 — 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-2023-52379 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
- No spam, self-promotion, credentials, or personal data