CVE-2024-20880
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 · uneditedStack-based buffer overflow vulnerability in bootloader prior to SMR Jun-2024 Release 1 allows physical attackers to overwrite memory.
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 stack-based buffer overflow vulnerability exists in the bootloader of Samsung mobile devices prior to the SMR (Samsung Mobile Security) June 2024 Release 1. The flaw allows a physical attacker to overwrite memory contents by exploiting insufficient bounds checking during bootloader's stack operations.
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
- Physical
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:P/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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Identify the Android OS versionGo to Settings > About Phone > Android version, or run 'getprop ro.build.version.release' via ADBAffected if The version is 12.0, 13.0, or 14.0 (any of the affected versions listed)
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Check the installed security patch levelGo to Settings > About Phone > Security patch level, or run 'getprop ro.build.version.security_patch' via ADBAffected if The security patch level is earlier than June 2024 or the SMR Jun-2024 Release 1 has not been applied
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Confirm the device is a Samsung mobile deviceVerify the manufacturer is Samsung by running 'getprop ro.product.manufacturer' or 'getprop ro.product.brand' via ADBAffected if The device is not a Samsung product (this CVE specifically affects Samsung bootloader)
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Verify bootloader version if accessibleOn some devices, run 'getprop ro.bootloader' or 'getprop ro.csc.bootloader' via ADB to check the bootloader versionAffected if The bootloader version corresponds to an unpatched release prior to the SMR June 2024 Release 1
The device is affected if it is a Samsung mobile device running Android 12.0, 13.0, or 14.0 AND has not received the SMR June 2024 Release 1 security patch update.
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 SMR Jun-2024 Release 1 or later security patch update to affected devices to obtain the patched bootloader version.
SMR Jun-2024 Release 1 (June 2024 Samsung Security Patch)
- 1. Go to Settings on the Samsung device
- 2. Navigate to Settings > Software update
- 3. Tap 'Download and install' to check for available updates
- 4. Download and install the June 2024 security update (SMR Jun-2024 Release 1) or later
- 5. After installation, verify the patch level by going to Settings > About phone > Software information and confirm the Security patch level shows June 2024 or later
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-20880 — 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-2024-20880 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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