AndroidOperating system · Google

CVE-2014-7920

CRITICAL · 9.8 CVSS v3.0 Published 2017-04-13
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
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
mediaserver in Android 2.2 through 5.x before 5.1 allows attackers to gain privileges. NOTE: This is a different vulnerability than CVE-2014-7921.

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 confidence

Privilege escalation vulnerability in the mediaserver component of Android OS versions 2.2 through 5.x (prior to 5.1). The vulnerability allows attackers to gain elevated privileges, likely through memory corruption or improper permission handling within the media processing service. The critical CVSS score of 9.8 indicates potential for remote code execution or complete device compromise.

MitigationApply Android system updates to version 5.1 or later; implement mobile device management (MDM) solutions to enforce patch levels and ensure timely updates across the device fleet.

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:= 2.2= 2.2.1= 2.2.2= 2.2.3= 2.3= 2.3.1= 2.3.2= 2.3.3= 2.3.4= 2.3.5= 2.3.6= 2.3.7

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
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/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 checks

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

  1. Check Android version
    Navigate to Settings > About Phone > Android version, or use ADB command: adb shell getprop ro.build.version.release
    Affected if Version is 2.2, 2.2.1, 2.2.2, 2.2.3, 2.3, 2.3.1, 2.3.2, 2.3.3, 2.3.4, 2.3.5, 2.3.6, 2.3.7, or any version from 3.x or 4.x up to but not including 5.1
  2. Check Android SDK version
    Use ADB command: adb shell getprop ro.build.version.sdk
    Affected if SDK version is below 22 (which corresponds to Android 5.1)
  3. Confirm mediaserver component presence
    Use ADB command: adb shell ps -A | grep mediaserver
    Affected if Mediaserver process is running (this is the vulnerable component)

The device is affected if it runs any Android version from 2.2 through 5.x prior to 5.1, as indicated by Android version or SDK version below 5.1.

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
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply Android system updates to version 5.1 or later; implement mobile device management (MDM) solutions to enforce patch levels and ensure timely updates across the device fleet.

Recommended fix Moderate confidence

Android 5.1 or later (which contains the security fix for this vulnerability)

  1. 1. Identify the device model and check with the device manufacturer for available security updates
  2. 2. If the device manufacturer no longer supports Android 2.2.x, consider replacing the device with one receiving regular security patches
  3. 3. If replacement is not possible, minimize attack surface by disabling mediaserver-related features in Settings
  4. 4. Avoid installing applications from unknown sources
  5. 5. Monitor for any manufacturer-provided security patches that may address this vulnerability
Caveat Devices running Android 2.2.x are very old and may not support upgrading to Android 5.1; hardware limitations may prevent upgrade

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

Fix this in Android Scoped from the published advisory
  • Consultation4.0 h
  • Testing8.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,360
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Scan for this in your stack

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dbcve dependency scanner

Check whether your project pulls in CVE-2014-7920 — 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-2014-7920 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