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FirefoxWeb browser · Mozilla

CVE-2014-1543

HIGH · 7.5 CVSS v2.0 Published 2014-06-11
Fix available
A fix is available. Upgrade to after 29.0.1 or later.
See remediation →
84/100
Remediation priority · High
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
Multiple heap-based buffer overflows in the navigator.getGamepads function in the Gamepad API in Mozilla Firefox before 30.0 allow remote attackers to execute arbitrary code by using non-contiguous axes with a (1) physical or (2) virtual Gamepad device.

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

Heap-based buffer overflow in the navigator.getGamepads function in Mozilla Firefox versions before 30.0 allows remote attackers to execute arbitrary code by providing gamepad devices with non-contiguous axes.

MitigationUpgrade Mozilla Firefox to version 30.0 or later to patch the vulnerability.

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
FirefoxWeb browser
Affected:<= 29.0.1

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
Partial
Integrity
Partial
Availability
Partial

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

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 Firefox version via About dialog
    Open Firefox, click the menu button (three horizontal lines in upper right), select Help, then About Firefox. Note the version number displayed.
    Affected if Version shown is 29.0.1 or any version earlier than 30.0
  2. Verify gamepad API is accessible
    In the Firefox address bar, type about:config and press Enter. In the search filter, type 'gamepad'. Look for the 'dom.gamepad.enabled' preference.
    Affected if dom.gamepad.enabled is set to true (default) and Firefox version is 29.0.1 or earlier
  3. Alternative version check via command line
    Open a terminal or command prompt and run 'firefox --version' or check the executable properties of the Firefox installation path.
    Affected if Returned version is 29.0.1 or earlier

The environment is affected if Mozilla Firefox version is 29.0.1 or earlier AND the Gamepad API is enabled (which is the default configuration).

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.

From vendor data
Upgrade available Upgrade to a release after 29.0.1
Interim mitigation

Upgrade Mozilla Firefox to version 30.0 or later to patch the vulnerability.

Fix this in Firefox Scoped from the published advisory
  • Consultation1.0 h
  • Testing1.0 h
2.0 hours of engineering $750
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,200.

Scan for this in your stack

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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-2014-1543 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