CVE-2024-56186
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 closeChannel of secureelementimpl.cpp, there is a possible out of bounds read due to an incorrect bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
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 confidenceAn out-of-bounds read vulnerability exists in the closeChannel function of secureelementimpl.cpp due to an incorrect bounds check. This allows a local attacker to read sensitive information from memory beyond intended buffer boundaries without requiring any elevated privileges or user interaction.
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 dataall versionsCVSS 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
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
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 security patch levelGo to Settings > About Phone > Security Patch Level (or Settings > System > Security > Security update). Record the date shown.Affected if The security patch level is earlier than the month this CVE was patched (December 2024) or if no security patch level is displayed
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Verify SecureElement service statusCheck if the device has hardware-backed security. On Android, go to Settings > Security > Security providers (or use a device info app). Look for 'Hardware-backed security' or 'StrongBox Keymaster' entries.Affected if SecureElement/Hardware Keymaster is present and the security patch is unpatched (all Android versions are vulnerable before the fix)
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Confirm Android version for contextNavigate to Settings > About Phone > Android version. Note the version number shown.Affected if While all versions are affected, knowing the Android version helps contextualize the security patch requirements (the fix is patch-based, not version-based)
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Check for SELinux or sepolicy status related to SecureElementOn a rooted device or through ADB, run 'getprop ro.hardware' to identify the hardware component, and check if secureelement service is running via 'adb shell dumpsys | grep -i secureelement'.Affected if SecureElement service is running on the device - this confirms the vulnerable component is active
A device is affected if it runs any version of Android without the December 2024 (or later) security patch, and has SecureElement/Hardware Keymaster hardware-backed security features enabled.
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-provided security patch for this vulnerability through system updates. Devices should be updated to the latest security patch level to receive the corrected bounds check in the SecureElement implementation.
- Consultation3.0 h
- Implementation2.0 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 $3,072.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-56186 — 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-2024-56186 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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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