CVE-2020-12396

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.

• CWE-787

• https://bugzilla.mozilla.org/buglist.cgi?bug_id=1339601%2C1611938%2C1620488%2C1622291%2C1627644Broken Link, Issue Tracking
• https://security.gentoo.org/glsa/202005-04Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-16/Vendor Advisory
• https://bugzilla.mozilla.org/buglist.cgi?bug_id=1339601%2C1611938%2C1620488%2C1622291%2C1627644Broken Link, Issue Tracking
• https://security.gentoo.org/glsa/202005-04Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-16/Vendor Advisory

Published

May 26, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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