CVE-2025-53170
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 · uneditedNull pointer dereference vulnerability in the application exit cause module Impact: Successful exploitation of this vulnerability may affect function stability.
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 null pointer dereference vulnerability exists in the application exit cause module. When the application attempts to dereference a null pointer during exit processing, it can cause a crash or instability, affecting the function's stability as indicated by the CVSS 5.5 medium severity rating.
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= 5.1.0CVSS 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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Identify HarmonyOS versionCheck the HarmonyOS version on the device: Go to Settings > About Device > Version, or use the command 'getprop ro.build.version.harmonyos' via ADB shellAffected if The version displayed is 5.1.0 exactly (note: the affected version is = 5.1.0, meaning only this specific version)
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Verify exit cause module presenceCheck if the application exit cause module is present on the system. This module is typically found in the system framework or HAL layer. Use 'find /system -name *exit*cause*' or check /system/lib/ for relevant libraries via ADB shellAffected if The exit cause module or related library exists on the device and is being loaded
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Monitor for null pointer crash during app exitReview system logs (logcat) for crashes or ANRs (Application Not Responding) occurring during application exit processes. Look for stack traces mentioning 'exit cause' or null pointer dereference patternsAffected if Crashes occur specifically during application exit with null pointer dereference signatures in the logs
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Confirm application framework usageCheck if third-party or system applications are using the HarmonyOS application framework APIs that invoke exit cause handling. This can be verified by examining app behavior during normal operationAffected if Applications that trigger exit processing are in use, which would exercise the vulnerable code path
A user is affected if their HarmonyOS device runs version 5.1.0 exactly AND they use applications that trigger the exit cause module during application termination.
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 proper null pointer validation checks before dereferencing pointers in the exit cause module, and ensure all pointers are initialized before use.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-53170 — 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-2025-53170 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
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