FirefoxWeb browser · Mozilla
CVE-2024-2615
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 · uneditedMemory safety bugs present in Firefox 123. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 124.
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 confidenceMemory safety bugs in Firefox 123 allowed memory corruption that could potentially be exploited for arbitrary code execution. This is a critical flaw in the browser's memory handling that affects versions prior to 124.
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
< 124.0CVSS 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:3.1/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 checksWork through these to decide whether this CVE applies to you.
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Find Firefox version numberOpen Firefox and navigate to the address bar, type about:Firefox and press Enter, or go to Help > About Firefox. The version number is displayed prominently on the page.Affected if The version shown is less than 124.0 (for example 123.x, 122.x, etc.)
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Check version via command line (optional)On Windows, run 'firefox --version' in Command Prompt or PowerShell. On macOS, run '/Applications/Firefox.app/Contents/MacOS/firefox --version' in Terminal. On Linux, run 'firefox --version' in terminal.Affected if The reported version is earlier than 124.0
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Verify automatic update status (optional)In Firefox, go to Menu > Settings > Privacy & Security, scroll to Firefox Updates and check if updates are enabled or if the browser is up to date.Affected if Updates are disabled or the browser has not automatically updated to 124.0 or later
You are affected if your installed Firefox version is any version prior to 124.0; check the version shown in about:Firefox or via command line to confirm.
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.
dbcve · scoped124.0
Update Firefox to version 124 or later to remediate this vulnerability.
Firefox 124.0
- Check the current Firefox version by navigating to Help > About Firefox
- Update Firefox to version 124.0 or later using the built-in update mechanism (Help > Check for Updates), or manually download the latest version from the official Mozilla website at www.mozilla.org
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Firefox
Scoped from the published advisory
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 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 $3,088.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-2615 — 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-2024-2615 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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