dbcve.org
HarmonyosOperating system · Huawei

CVE-2025-54647

MEDIUM · 6.5 CVSS v3.1 Published 2025-08-06
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
70/100
Remediation priority · Elevated
No privileges Zero-click

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 · unedited
Out-of-bounds read vulnerability in the SSAP module of the NearLink protocol stack. 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 confidence

An out-of-bounds read vulnerability exists in the SSAP module of the NearLink protocol stack. This memory safety issue allows reading beyond allocated buffer boundaries, potentially causing availability impacts such as crashes or denial of service conditions.

MitigationImplement proper boundary checking and input validation in the SSAP module to ensure all memory accesses stay within allocated buffers. If a vendor patch is available, apply it promptly.

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
HarmonyosOperating system
Affected:= 5.1.0

CVSS 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
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:A/AC:L/PR:N/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify the HarmonyOS version
    Check the system's OS version information (typically via Settings > About Phone > Version, or using 'getprop' command via ADB for Android-based HarmonyOS devices)
    Affected if The version reported is exactly 5.1.0
  2. Verify NearLink stack presence
    Check if the NearLink protocol stack is installed or available on the device (look for NearLink-related system services, modules, or settings)
    Affected if NearLink functionality is present on the system
  3. Confirm SSAP module is active
    Determine if the SSAP (Service and Profile Application Protocol) module within NearLink is currently enabled or in use on the device
    Affected if SSAP module is loaded or active in the NearLink stack

The environment is affected only if it is running Huawei HarmonyOS version 5.1.0 with the NearLink stack and its SSAP module present and active.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement proper boundary checking and input validation in the SSAP module to ensure all memory accesses stay within allocated buffers. If a vendor patch is available, apply it promptly.

Fix this in Harmonyos Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-54647 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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