CVE-2019-9809

If the source for resources on a page is through an FTP connection, it is possible to trigger a series of modal alert messages for these resources through invalid credentials or locations. These messages cannot be immediately dismissed, allowing for a denial of service (DOS) attack. This vulnerability affects Firefox < 66.

• CWE-399

• https://bugzilla.mozilla.org/show_bug.cgi?id=1282430Exploit, Issue Tracking, Patch, Vendor Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=1523249Issue Tracking, Permissions Required, Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2019-07/Vendor Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=1282430Exploit, Issue Tracking, Patch, Vendor Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=1523249Issue Tracking, Permissions Required, Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2019-07/Vendor Advisory

Published

Apr 26, 2019

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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