CVE-2015-2741

Mozilla Firefox before 39.0, Firefox ESR 38.x before 38.1, and Thunderbird before 38.1 do not enforce key pinning upon encountering an X.509 certificate problem that generates a user dialog, which allows user-assisted man-in-the-middle attackers to bypass intended access restrictions by triggering a (1) expired certificate or (2) mismatched hostname for a domain with pinning enabled.

• CWE-310

• http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00025.html
• http://rhn.redhat.com/errata/RHSA-2015-1207.html
• http://rhn.redhat.com/errata/RHSA-2015-1455.html
• http://www.mozilla.org/security/announce/2015/mfsa2015-67.htmlVendor Advisory
• http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlThird Party Advisory
• http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.htmlThird Party Advisory
• http://www.securityfocus.com/bid/75541
• http://www.securitytracker.com/id/1032783
• http://www.securitytracker.com/id/1032784
• http://www.ubuntu.com/usn/USN-2656-1
• http://www.ubuntu.com/usn/USN-2656-2
• https://bugzilla.mozilla.org/show_bug.cgi?id=1147497Issue Tracking, Vendor Advisory
• https://security.gentoo.org/glsa/201512-10
• http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00025.html
• http://rhn.redhat.com/errata/RHSA-2015-1207.html
• http://rhn.redhat.com/errata/RHSA-2015-1455.html
• http://www.mozilla.org/security/announce/2015/mfsa2015-67.htmlVendor Advisory
• http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlThird Party Advisory
• http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.htmlThird Party Advisory
• http://www.securityfocus.com/bid/75541
• http://www.securitytracker.com/id/1032783
• http://www.securitytracker.com/id/1032784
• http://www.ubuntu.com/usn/USN-2656-1
• http://www.ubuntu.com/usn/USN-2656-2
• https://bugzilla.mozilla.org/show_bug.cgi?id=1147497Issue Tracking, Vendor Advisory
• https://security.gentoo.org/glsa/201512-10

Published

Jul 6, 2015

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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