CVE-2023-21498
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 vulnerability in setPartnerTAInfo in mPOS TUI trustlet prior to SMR May-2023 Release 1 allows local attackers to overwrite the trustlet 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 · high confidenceImproper input validation in the setPartnerTAInfo function of Samsung's mPOS TUI trustlet allows local attackers to overwrite trustlet memory. This is a memory corruption vulnerability in a TrustZone trusted execution environment component that handles secure payment transactions.
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= 13.0CVSS 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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Confirm Samsung Android versionGo to Settings > About Phone > Android version or run 'getprop ro.build.version.release' via ADBAffected if Version is exactly 13.0 (not 12.x or 14+) - this CVE affects only Android 13.0 per the affected versions field
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Verify security patch levelGo to Settings > About Phone > Security patch level or run 'getprop ro.build.version.security_patch' via ADBAffected if Patch level is earlier than May-2023 (SMR May-2023 Release 1 or later contains the fix)
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Confirm device has mPOS/TUI trustlet capabilityCheck device specifications or look for TUI (Trusted User Interface) related system files in /vendor or /system/vendor partition - the vulnerable trustlet handles secure payment transactionsAffected if Device has mPOS (mobile Point of Sale) functionality with TUI trustlet present and active
Device is affected if it is a Samsung Android device on version 13.0 with a security patch level before May-2023 AND has mPOS/TUI trustlet capability for secure payment transactions.
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 Samsung's SMR May-2023 Release 1 or later security update, which patches the vulnerable trustlet. Users should verify their device has received the latest Samsung security maintenance release.
SMR May-2023 Release 1 (Security Patch Level May-2023)
- Identify the specific Samsung device model number (e.g., SM-S918B for Galaxy S23 Ultra)
- Navigate to Settings > About Phone > Software Updates on the Samsung device
- Check for available updates and ensure the device receives the SMR May-2023 Release 1 security patch or later
- If automatic updates are enabled, the patch should be delivered automatically; otherwise, manually trigger a software update check
- Verify the update was applied by checking Settings > About Phone > Software Information and confirming the security patch level shows May-2023 or later
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Testing1.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-21498 — 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-2023-21498 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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