CVE-2024-20876
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 · uneditedImproper input validation in libsheifdecadapter.so prior to SMR Jun-2024 Release 1 allows local attackers to lead to memory corruption.
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 memory corruption vulnerability exists in libsheifdecadapter.so, a library used for HEIF/HEIC image decoding, due to improper input validation. Local attackers can exploit this to corrupt memory, potentially achieving code execution with elevated privileges on affected Samsung mobile devices.
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= 13.0= 14.0CVSS 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 version on Samsung deviceNavigate to Settings > About Phone > Android version on the Samsung mobile deviceAffected if The Android version displays 12.0, 13.0, or 14.0, indicating the device falls within the affected version range
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Locate libsheifdecadapter.so libraryUse ADB shell or a root file explorer to search for libsheifdecadapter.so in common system library paths such as /system/lib64/, /vendor/lib64/, or /product/lib64/Affected if The library file exists on the device, confirming the vulnerable component is present
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Verify library modification dateRun 'ls -la' via ADB shell on the libsheifdecadapter.so file to check its last modified timestampAffected if The library file was last modified before June 2024, indicating it may be the unpatched version
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Test HEIF/HEIC image processingOpen or attempt to decode a HEIF/HEIC format image using the device gallery or camera appAffected if The device successfully processes HEIF/HEIC images, meaning the vulnerable code path is reachable
The device is affected if it runs Android 12.0, 13.0, or 14.0 and contains the libsheifdecadapter.so library that predates the June 2024 security patch.
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 · scopedUpdate Samsung mobile devices to the SMR Jun-2024 Release 1 or later to obtain the patched libsheifdecadapter.so library with proper input validation.
SMR Jun-2024 Release 1 or later
- Check if your Samsung device has received the SMR (Samsung Monthly Release) for June 2024 or later
- Go to Settings > Security and privacy > Security update on your Samsung device
- Verify the security patch level is June-2024 or later
- If available, download and install the latest system update containing the June 2024 security patch
- After installation, confirm the security patch date in Settings > About phone > Software information > Security patch level
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation6.0 h
- Implementation4.0 h
- Testing4.0 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 $4,608.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-20876 — 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-2024-20876 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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