Description
Mozilla developers and community members reported memory safety bugs present in Firefox 75. 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 < 76.
References (3)
Core 3
Core References
Vendor Advisory x_refsource_misc
https://www.mozilla.org/security/advisories/mfsa2020-16/
Broken Link, Issue Tracking x_refsource_misc
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1339601%2C1611938%2C1620488%2C1622291%2C1627644
Third Party Advisory x_refsource_misc
https://security.gentoo.org/glsa/202005-04
Scores
CVSS v3
9.8
EPSS
0.0058
EPSS Percentile
69.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-787
Status
published
Products (1)
mozilla/firefox
< 76.0
Published
May 26, 2020
Tracked Since
Feb 18, 2026