CVE-2018-12400

Name: CVE-2018-12400
Creator: NVD / NIST
Published: 2019-02-28T18:29:01.07+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.57%

Last modified Jun 17, 2026

CVE-2018-12400 is a vulnerability of currently unknown severity. In private browsing mode on Firefox for Android, favicons are cached in the cache/icons folder as they are in non-private mode. This allows information leakage of sites visited during private browsing sessions. EPSS estimates a 1.57% chance of exploitation in the next 30 days.

Description

In private browsing mode on Firefox for Android, favicons are cached in the cache/icons folder as they are in non-private mode. This allows information leakage of sites visited during private browsing sessions. *Note: this issue only affects Firefox for Android. Desktop versions of Firefox are unaffected.*. This vulnerability affects Firefox < 63.

Metrics

EPSS Probability

1.57%

72.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 63.0

References

http://www.securityfocus.com/bid/105721Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041944Third Party Advisory, VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1448305Issue Tracking, Permissions Required, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-26/Vendor Advisory
http://www.securityfocus.com/bid/105721Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041944Third Party Advisory, VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1448305Issue Tracking, Permissions Required, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-26/Vendor Advisory

Timeline

Published: Feb 28, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-12400?

How severe is CVE-2018-12400?

Severity scoring for CVE-2018-12400 is pending analysis. The EPSS model estimates a 1.57% probability of exploitation in the next 30 days.

How do I fix CVE-2018-12400?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-12400?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST