CVE-2024-20092
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 vdec, 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: ALPS09028313; Issue ID: MSV-1700.
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 missing bounds check in the vdec (video decoder) component allows an out-of-bounds write, which can be exploited for local privilege escalation. The vulnerability requires System-level execution privileges to exploit but does not need user interaction. This is a memory safety vulnerability in the video decoding subsystem.
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= 12.0CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/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 Android versionRun 'getprop ro.build.version.release' or check Settings > About Phone > Android version. Verify if version equals 12.0 exactly.Affected if Android version is exactly 12.0 (this CVE does not affect other versions)
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Identify vdec component presenceCheck for vdec driver or module by examining /proc or /sys entries related to video decode. Use 'ls /dev/video*' or check kernel modules with 'lsmod | grep -i vdec'. Also examine /vendor or /system vendor-specific paths for vdec components.Affected if vdec (video decoder) component exists on the device
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Verify vdec is actively loaded or in useCheck if vdec kernel module is loaded ('lsmod'), or examine /proc/[pid]/maps for vdec references. On MediaTek-based Android 12 devices, check /sys/class/video for vdec entries.Affected if vdec module is loaded or actively decoding video content
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Confirm System-level execution contextDetermine if any process or service runs with System privileges that interact with vdec. Check running services with 'dumpsys' or examine process privileges related to video decoding.Affected if Processes with System-level privileges are using the video decoder subsystem
A system is affected only if it runs Android version 12.0 exactly AND contains the vdec component with active video decoding processes at System privilege level.
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 the vendor patch ALPS09028313 to address the missing bounds check in the vdec component. Given the privilege escalation risk and System-level execution requirement, prioritize patching systems with elevated video decoding workloads.
- Consultation3.0 h
- Implementation6.0 h
- Testing5.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-20092 — 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-2024-20092 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
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