CVE-2022-48511
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 · uneditedUse After Free (UAF) vulnerability in the audio PCM driver module under special conditions. Successful exploitation of this vulnerability may cause audio features to perform abnormally.
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 Use After Free (UAF) memory corruption vulnerability exists in the audio PCM driver module. Under specific triggering conditions, the driver improperly accesses memory that has been freed, potentially allowing memory corruption and abnormal audio 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= 12.0.0= 2.0.0CVSS 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
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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, or run 'getprop ro.build.emui_version' via ADB shellAffected if The version listed is exactly 12.0.0
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Check your Huawei Harmonyos versionGo to Settings > About Phone > Version on your Huawei device, or run 'getprop ro.build.version.harmonyos' via ADB shellAffected if The version listed is exactly 2.0.0
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Identify the audio PCM driver moduleRun 'ls /system/lib/modules/' or check /vendor/lib/modules/ for audio-related kernel modules, or use 'lsmod' if you have root access to list loaded kernel modulesAffected if A module named 'audio_pcm' or similar PCM audio driver module is present or loaded on the system
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Verify audio driver is actively usedCheck if the audio subsystem is enabled by testing audio playback functionality, or inspect /proc/asound/ for active sound cards if root access is availableAffected if The audio PCM driver is loaded and actively handling audio operations, making the UAF trigger condition possible
You are affected if your device runs Huawei Emui 12.0.0 or Harmonyos 2.0.0 AND the audio PCM driver module is present and active on the system.
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 dataApply vendor-provided patches or updates to the audio PCM driver module; if no patch available, consider isolating audio subsystems or implementing runtime memory protections.
- Consultation3.0 h
- Implementation5.0 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 $3,696.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-48511 — 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-2022-48511 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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- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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