CVE-2020-6814

Mozilla developers reported memory safety bugs present in Firefox and Thunderbird 68.5. 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 Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.

• CWE-787

• https://bugzilla.mozilla.org/buglist.cgi?bug_id=1592078%2C1604847%2C1608256%2C1612636%2C1614339Issue Tracking, Vendor Advisory
• https://usn.ubuntu.com/4328-1/Third Party Advisory
• https://usn.ubuntu.com/4335-1/Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-08/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-09/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-10/Vendor Advisory
• https://bugzilla.mozilla.org/buglist.cgi?bug_id=1592078%2C1604847%2C1608256%2C1612636%2C1614339Issue Tracking, Vendor Advisory
• https://usn.ubuntu.com/4328-1/Third Party Advisory
• https://usn.ubuntu.com/4335-1/Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-08/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-09/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-10/Vendor Advisory

Published

Mar 25, 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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