CVE-2020-6828

Name: CVE-2020-6828
Creator: NVD / NIST
Published: 2020-04-24T16:15:13.9+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.47%

Last modified Jun 17, 2026

CVE-2020-6828 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A malicious Android application could craft an Intent that would have been processed by Firefox for Android and potentially result in a file overwrite in the user's profile directory. One exploitation vector for this would be to supply a user.js file providing arbitrary malicious preference values. EPSS estimates a 1.47% chance of exploitation in the next 30 days.

Description

A malicious Android application could craft an Intent that would have been processed by Firefox for Android and potentially result in a file overwrite in the user's profile directory. One exploitation vector for this would be to supply a user.js file providing arbitrary malicious preference values. Control of arbitrary preferences can lead to sufficient compromise such that it is generally equivalent to arbitrary code execution.<br> *Note: This issue only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 68.7.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS Probability

1.47%

70.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Mozilla	Firefox Esr	< 68.7.0

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1617928Issue Tracking, Permissions Required
https://www.mozilla.org/security/advisories/mfsa2020-13/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1617928Issue Tracking, Permissions Required
https://www.mozilla.org/security/advisories/mfsa2020-13/Vendor Advisory

Timeline

Published: Apr 24, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-6828?

How severe is CVE-2020-6828?

CVE-2020-6828 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.47% probability of exploitation in the next 30 days.

How do I fix CVE-2020-6828?

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-2020-6828?

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

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Source: NVD / NIST