FirefoxWeb browser · Mozilla
CVE-2024-11702
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 · uneditedCopying sensitive information from Private Browsing tabs on Android, such as passwords, may have inadvertently stored data in the cloud-based clipboard history if enabled. This vulnerability affects Firefox < 133 and Thunderbird < 133.
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 confidenceOn Android, Firefox and Thunderbird versions prior to 133 could inadvertently sync sensitive data copied from Private Browsing tabs (such as passwords) to cloud-based clipboard history, bypassing the privacy protections expected of Private Browsing mode. This occurs when the cloud-based clipboard history feature is enabled, causing sensitive data to be persistently stored outside the Private Browsing session.
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
< 133.0< 133.0CVSS 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
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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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Identify the product and platformConfirm you are using Mozilla Firefox or Thunderbird on an Android device. This vulnerability only affects the Android versions of these products.Affected if Not applicable - this is a prerequisite check
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Check the installed versionOpen the app, go to Settings > About [Firefox/Thunderbird] to view the current version number. Compare this against the affected range (versions prior to 133.0).Affected if The installed version is Firefox < 133.0 or Thunderbird < 133.0 on Android
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Verify cloud-based clipboard history statusNavigate to Settings > Privacy & Security > Sync > Cloud-based clipboard history (or Settings > Privacy > Clipboard > Cloud history, depending on UI). Determine whether the cloud clipboard history feature is enabled.Affected if Cloud-based clipboard history is enabled in the browser settings
You are affected if you are running Firefox or Thunderbird version below 133.0 on Android AND have cloud-based clipboard history enabled, as sensitive data copied in Private Browsing mode could be synced to cloud storage.
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 · scoped133.0
Upgrade Firefox and Thunderbird to version 133 or later on Android devices. Alternatively, disable cloud-based clipboard history in browser settings on Android to prevent sensitive Private Browsing data from being synced.
Firefox 133.0 or Thunderbird 133.0
- Update Firefox to version 133.0 or later on Android
- Update Thunderbird to version 133.0 or later
- Restart the application after updating
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Firefox
Scoped from the published advisory
- Consultation2.0 h
- Implementation1.0 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 $2,224.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-11702 — 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-2024-11702 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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- 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