Description
Mozilla developers reported memory safety bugs present in Firefox 80. 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 < 81.
References (2)
Core 2
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://www.mozilla.org/security/advisories/mfsa2020-42/
Broken Link, Issue Tracking, Vendor Advisory x_refsource_misc
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1656063%2C1656064%2C1656067%2C1660293
Scores
CVSS v3
8.8
EPSS
0.0031
EPSS Percentile
54.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Details
CWE
CWE-667
CWE-787
Status
published
Products (1)
mozilla/firefox
< 81.0
Published
Oct 01, 2020
Tracked Since
Feb 18, 2026