CVE-2020-12389

The Firefox content processes did not sufficiently lockdown access control which could result in a sandbox escape. *Note: this issue only affects Firefox on Windows operating systems.*. This vulnerability affects Firefox ESR < 68.8 and Firefox < 76.

• CWE-20

• https://bugzilla.mozilla.org/show_bug.cgi?id=1554110Permissions Required
• https://www.mozilla.org/security/advisories/mfsa2020-16/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-17/Vendor Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=1554110Permissions Required
• https://www.mozilla.org/security/advisories/mfsa2020-16/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-17/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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