CVE-2024-20135
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 soundtrigger, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS09142526; Issue ID: MSV-1841.
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 · high confidenceAn out-of-bounds write vulnerability exists in the Android soundtrigger driver due to a missing bounds check. This allows a local attacker with System-level privileges to potentially escalate to higher privileges by writing beyond allocated buffer boundaries.
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= 14.0= 15.0CVSS 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
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:H/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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Identify Android versionCheck the installed Android OS version on the device via Settings > About Phone or by running 'getprop ro.build.version.release' in ADB shellAffected if Version is exactly 14.0 or 15.0 (the affected versions listed)
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Verify soundtrigger module presenceCheck if the soundtrigger kernel module is loaded on the device. In ADB shell, run 'ls /dev/soundtrigger*' or check 'getprop | grep soundtrigger' to see if the soundtrigger component is present and activeAffected if Soundtrigger device node exists and is accessible, indicating the vulnerable driver component is enabled
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Confirm System-level access contextDetermine if the process or user context checking for the vulnerability has System-level privileges. In ADB, run 'id' or 'dumpsys package <package>' to inspect permission levelsAffected if The checking process or attacker would need System-level (UID 1000) or root access to exploit this vulnerability; devices where non-privileged apps can interact with soundtrigger interface may have wider attack surface
The device is affected if it runs Android version 14.0 or 15.0 and has the soundtrigger driver component enabled, as the vulnerability requires both the affected version and the vulnerable component to be present.
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 · scopedApply the official patch (ALPS09142526) which adds proper bounds validation to the soundtrigger component. This is a kernel/driver-level fix requiring system-level update deployment.
Android 14.0 and 15.0 devices should receive the March 2024 or later security update (or equivalent MediaTek firmware update containing ALPS09142526)
- Check for and apply the latest Android security update from Google for your device
- Check for and apply the latest MediaTek firmware update from your device manufacturer that includes Patch ID ALPS09142526
- Verify the patch is applied by checking the Android security patch level in Settings > About Phone > Security Patch Level
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation6.0 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 $3,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-20135 — 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-2024-20135 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
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