CVE-2020-12751
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 · uneditedAn issue was discovered on Samsung mobile devices with O(8.X), P(9.0), and Q(10.0) software. The Quram image codec library allows attackers to overwrite memory and execute arbitrary code via crafted JPEG data that is mishandled during decoding. The Samsung ID is SVE-2020-16943 (May 2020).
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 confidenceMemory corruption vulnerability in Samsung's Quram image codec library allows remote code execution through specially crafted JPEG images. The library mishandles malformed JPEG data during decoding, enabling attackers to overwrite memory and execute arbitrary code on affected Samsung mobile devices running Android O (8.X), P (9.0), and Q (10.0).
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= 8.0= 8.1= 9.0= 10.0CVSS 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
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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 device manufacturerCheck if the device is a Samsung model (SM-xxx series) by reviewing the device settings under 'About phone' or running 'getprop ro.product.manufacturer'Affected if The device is not manufactured by Samsung, as this vulnerability specifically affects Samsung's implementation of the Quram library
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Confirm Android versionNavigate to Settings > About phone > Android version, or run 'getprop ro.build.version.release'Affected if The Android version is 8.0, 8.1, 9.0, or 10.0 - these are the affected version ranges per the CVE
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Verify Samsung security patch levelCheck Settings > About phone > Software information > Build number, or run 'getprop ro.build.version.security_patch' to view the installed security patch dateAffected if The security patch level is earlier than May 2020, indicating the SVE-2020-16943 fix has not been applied
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Confirm Quram library presenceSearch for the Quram library file (typically libquram* or quramjpeg*) in /system/lib or /vendor/lib directories using a file manager or 'find / -name *quram*' commandAffected if The Quram image codec library is present on the device - this is the vulnerable component that processes JPEG images
A Samsung device running Android 8.0-10.0 with a security patch level before May 2020 and the Quram library present is vulnerable to this CVE.
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 Samsung security patch SVE-2020-16943 (May 2020) which addresses this vulnerability in the Quram image codec library. Users should ensure their devices are updated to the latest Samsung security maintenance release.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-12751 — 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-2020-12751 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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