FirefoxWeb browser · Mozilla
CVE-2015-7180
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 · uneditedThe ReadbackResultWriterD3D11::Run function in Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 misinterprets the return value of a function call, which might allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly have unspecified other impact via unknown vectors.
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 confidenceA vulnerability in Firefox's Direct3D 11 graphics rendering code where the ReadbackResultWriterD3D11::Run function incorrectly interprets a function return value, leading to memory corruption and potential application crash or remote code execution.
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
<= 40.0.3= 38.0= 38.0.1= 38.0.5= 38.1.0= 38.1.1= 38.2.0= 38.2.1CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Check installed Firefox versionOpen Firefox, click Help > About Firefox, or check the executable properties at C:\Program Files\Mozilla Firefox\firefox.exe, or run: firefox -v from command lineAffected if Version is 40.0.3 or lower, OR exactly 38.0, 38.0.1, 38.0.5, 38.1.0, 38.1.1, 38.2.0, or 38.2.1
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Confirm Direct3D 11 rendering is in useIn Firefox address bar, type about:config and search for gfx.direct3d11.disable - verify it is set to false (default) or not present, indicating Direct3D 11 rendering is enabledAffected if gfx.direct3d11.disable is false or does not exist (Direct3D 11 is active)
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Verify hardware acceleration is enabledIn Firefox address bar, type about:preferences, scroll to Performance, or check about:config for webgl.disabled - hardware acceleration must be enabled for the vulnerable code path to executeAffected if Hardware acceleration is enabled (webgl.disabled is false or not set)
User is affected if Firefox version matches the listed vulnerable versions AND Direct3D 11 rendering with hardware acceleration is active on the system.
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 dataUpgrade Mozilla Firefox to version 41.0 or later, or Firefox ESR to version 38.3 or later. Apply standard enterprise patch deployment procedures to ensure all affected installations are updated.
Fix this in Firefox
Scoped from the published advisory
- Consultation1.0 h
- Implementation2.0 h
- Testing1.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,424.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2015-7180 — 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- www.mozilla.org
- lists.opensuse.org
- lists.opensuse.org
- lists.opensuse.org
- lists.opensuse.org
- lists.opensuse.org
- lists.opensuse.org
- rhn.redhat.com
- rhn.redhat.com
- www.debian.org
- www.oracle.com
- www.oracle.com
- www.securityfocus.com
- www.securitytracker.com
- www.ubuntu.com
- www.ubuntu.com
- www.ubuntu.com
- www.ubuntu.com
- www.ubuntu.com
- bugzilla.mozilla.org
- nvd.nist.gov
Practitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2015-7180 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
- No spam, self-promotion, credentials, or personal data