AndroidOperating system · Google

CVE-2015-3823

HIGH · 10.0 CVSS v2.0 Published 2015-10-06
Fix available
A fix is available. Upgrade to after 5.1 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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 · unedited
libstagefright in Android before 5.1.1 LMY48T allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted media file, aka internal bug 21335999.

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 confidence

Memory corruption vulnerability in libstagefright (Android's media playback engine) that can be triggered by processing a crafted media file, allowing remote attackers to execute arbitrary code or cause a denial of service.

MitigationUpdate affected Android devices to version 5.1.1 LMY48T or later. This is a system-level vulnerability that requires an OS patch from the device manufacturer or carrier.

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
AndroidOperating system
Affected:<= 5.1

CVSS 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
Network
Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:L/Au:N/C:C/I:C/A:C

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 checks

Work through these to decide whether this CVE applies to you.

  1. Check Android OS version on the device
    Go to Settings > About Phone > Android version, or run 'getprop ro.build.version.release' via ADB shell
    Affected if Version is 5.1 or lower (5.0, 4.4.x, 4.3, etc.)
  2. Confirm the specific Android 5.1 build number
    Go to Settings > About Phone > Build number, or run 'getprop ro.build.display.id' via ADB shell
    Affected if Build is earlier than LMY48T (for example, 5.1.0 or 5.1 with older security patches)
  3. Verify if libstagefright is present on the device
    Check for /system/lib/libstagefright.so via file manager or 'ls -l /system/lib/libstagefright.so' via ADB shell
    Affected if The library file exists (it is present in all Android versions up to 5.1)

The device is affected if running Android 5.1 or any version below 5.1.1 LMY48T, as the vulnerable libstagefright library is present in those versions.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Upgrade available Upgrade to a release after 5.1
Interim mitigation

Update affected Android devices to version 5.1.1 LMY48T or later. This is a system-level vulnerability that requires an OS patch from the device manufacturer or carrier.

Recommended fix High confidence

Android 5.1.1 LMY48T or later

  1. Upgrade the Android device or system to Android 5.1.1 (build LMY48T) or later to patch the libstagefright vulnerability
  2. Verify the Android version after upgrade by going to Settings > About Phone > Android version
Caveat Upgrading Android OS may cause incompatibility with older applications or custom ROMs; ensure backup of data before upgrade

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Android Scoped from the published advisory
  • Consultation8.0 h
  • Implementation16.0 h
  • Testing12.0 h
  • Review / QA4.0 h
40.0 hours of engineering $7,000
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $11,200.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2015-3823 — 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2015-3823 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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
  • No spam, self-promotion, credentials, or personal data