ESB-2026.3209 — Vulnetix

ESB-2026.3209 PUBLISHED CVSS 8.800000190734863 HIGH

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.3209 Security update for MozillaThunderbird 2 April 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: MozillaThunderbird Publisher: SUSE Operating System: SUSE Resolution: Patch/Upgrade CVE Names: CVE-2026-3889 CVE-2026-4371 CVE-2025-59375 CVE-2026-4684 CVE-2026-4685 CVE-2026-4686 CVE-2026-4687 CVE-2026-4688 CVE-2026-4689 CVE-2026-4690 CVE-2026-4691 CVE-2026-4692 CVE-2026-4693 CVE-2026-4694 CVE-2026-4695 CVE-2026-4696 CVE-2026-4697 CVE-2026-4698 CVE-2026-4699 CVE-2026-4700 CVE-2026-4701 CVE-2026-4702 CVE-2026-4704 CVE-2026-4705 CVE-2026-4706 CVE-2026-4707 CVE-2026-4708 CVE-2026-4709 CVE-2026-4710 CVE-2026-4711 CVE-2026-4712 CVE-2026-4713 CVE-2026-4714 CVE-2026-4715 CVE-2026-4716 CVE-2026-4717 CVE-2026-4718 CVE-2026-4719 CVE-2026-4720 CVE-2026-4721 Original Bulletin: https://www.suse.com/support/update/announcement/2026/suse-su-20261163-1 Comment: CVSS (Max): 8.8 CVE-2026-4721 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) CVSS Source: SUSE Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H EPSS (Max): 0.1% (17th) CVE-2026-4371 2026-04-01 - --------------------------BEGIN INCLUDED TEXT-------------------- Security update for MozillaThunderbird Announcement ID: SUSE-SU-2026:1163-1 Release Date: 2026-04-01T08:49:15Z Rating: important References: o bsc#1260083 o CVE-2025-59375 o CVE-2026-3889 o CVE-2026-4371 o CVE-2026-4684 o CVE-2026-4685 o CVE-2026-4686 o CVE-2026-4687 o CVE-2026-4688 o CVE-2026-4689 o CVE-2026-4690 o CVE-2026-4691 o CVE-2026-4692 o CVE-2026-4693 o CVE-2026-4694 o CVE-2026-4695 o CVE-2026-4696 o CVE-2026-4697 o CVE-2026-4698 o CVE-2026-4699 o CVE-2026-4700 Cross-References: o CVE-2026-4701 o CVE-2026-4702 o CVE-2026-4704 o CVE-2026-4705 o CVE-2026-4706 o CVE-2026-4707 o CVE-2026-4708 o CVE-2026-4709 o CVE-2026-4710 o CVE-2026-4711 o CVE-2026-4712 o CVE-2026-4713 o CVE-2026-4714 o CVE-2026-4715 o CVE-2026-4716 o CVE-2026-4717 o CVE-2026-4718 o CVE-2026-4719 o CVE-2026-4720 o CVE-2026-4721 o CVE-2025-59375 ( SUSE ): 8.2 CVSS:4.0/AV:N/AC:L/AT:P/PR:N /UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N o CVE-2025-59375 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N /S:U/C:N/I:N/A:H o CVE-2025-59375 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-3889 ( SUSE ): 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:L/I:L/A:N o CVE-2026-3889 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:N/I:H/A:N o CVE-2026-4371 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/ S:U/C:H/I:N/A:N o CVE-2026-4371 ( NVD ): 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/ S:U/C:H/I:N/A:H o CVE-2026-4684 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/ S:U/C:H/I:H/A:H o CVE-2026-4684 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/ S:U/C:H/I:H/A:H o CVE-2026-4685 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:H/I:H/A:H o CVE-2026-4685 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4685 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4686 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:H/I:H/A:H o CVE-2026-4686 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4686 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4687 ( SUSE ): 8.3 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/ S:C/C:H/I:H/A:H o CVE-2026-4687 ( NVD ): 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:C/C:N/I:N/A:H o CVE-2026-4687 ( NVD ): 9.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:C/C:H/I:H/A:H o CVE-2026-4688 ( SUSE ): 8.3 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/ S:C/C:H/I:H/A:H o CVE-2026-4688 ( NVD ): 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:C/C:H/I:H/A:H o CVE-2026-4688 ( NVD ): 9.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:C/C:H/I:H/A:H o CVE-2026-4689 ( SUSE ): 8.3 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/ S:C/C:H/I:H/A:H o CVE-2026-4689 ( NVD ): 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:C/C:H/I:H/A:H o CVE-2026-4689 ( NVD ): 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:C/C:H/I:H/A:H o CVE-2026-4690 ( SUSE ): 8.3 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/ S:C/C:H/I:H/A:H o CVE-2026-4690 ( NVD ): 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:C/C:N/I:N/A:H o CVE-2026-4690 ( NVD ): 9.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:C/C:H/I:H/A:H o CVE-2026-4691 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:H/I:H/A:H o CVE-2026-4691 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-4691 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-4692 ( SUSE ): 8.3 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/ S:C/C:H/I:H/A:H o CVE-2026-4692 ( NVD ): 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:C/C:H/I:H/A:H o CVE-2026-4692 ( NVD ): 9.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:C/C:H/I:H/A:H o CVE-2026-4693 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:H/I:H/A:H o CVE-2026-4693 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4693 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4694 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:H/I:H/A:H o CVE-2026-4694 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4694 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4695 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:H/I:H/A:H o CVE-2026-4695 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4695 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4696 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:H/I:H/A:H o CVE-2026-4696 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-4696 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-4697 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:H/I:H/A:H o CVE-2026-4697 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4697 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4698 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:H/I:H/A:H o CVE-2026-4698 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-4698 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-4699 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:H/I:H/A:H o CVE-2026-4699 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4699 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4700 ( SUSE ): 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:L/I:L/A:N o CVE-2026-4700 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-4700 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-4701 ( SUSE ): 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ CVSS scores: S:U/C:L/I:L/A:L o CVE-2026-4701 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-4701 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-4702 ( SUSE ): 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:L/I:L/A:L o CVE-2026-4702 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-4702 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-4704 ( SUSE ): 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:N/I:N/A:L o CVE-2026-4704 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4704 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4705 ( SUSE ): 5.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/ S:U/C:L/I:L/A:L o CVE-2026-4705 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-4705 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-4706 ( SUSE ): 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:L/I:L/A:L o CVE-2026-4706 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4706 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4707 ( SUSE ): 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:L/I:L/A:L o CVE-2026-4707 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4707 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4708 ( SUSE ): 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:L/I:L/A:L o CVE-2026-4708 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4708 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4709 ( SUSE ): 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:L/I:L/A:L o CVE-2026-4709 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4709 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4710 ( SUSE ): 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:L/I:L/A:L o CVE-2026-4710 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-4710 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-4711 ( SUSE ): 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:L/I:L/A:L o CVE-2026-4711 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-4711 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-4712 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:H/I:N/A:N o CVE-2026-4712 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:N/A:N o CVE-2026-4712 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:N/A:N o CVE-2026-4713 ( SUSE ): 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:L/I:L/A:L o CVE-2026-4713 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4713 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4714 ( SUSE ): 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:L/I:L/A:L o CVE-2026-4714 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4714 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4715 ( SUSE ): 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:L/I:L/A:L o CVE-2026-4715 ( NVD ): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:N/A:H o CVE-2026-4715 ( NVD ): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:N/A:H o CVE-2026-4716 ( SUSE ): 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:L/I:L/A:L o CVE-2026-4716 ( NVD ): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:N/A:H o CVE-2026-4716 ( NVD ): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:N/A:H o CVE-2026-4717 ( SUSE ): 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:L/I:L/A:L o CVE-2026-4717 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-4717 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-4718 ( SUSE ): 5.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/ S:U/C:L/I:L/A:L o CVE-2026-4718 ( NVD ): 8.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:H/I:H/A:N o CVE-2026-4718 ( NVD ): 8.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:H/I:H/A:N o CVE-2026-4719 ( SUSE ): 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:L/I:L/A:L o CVE-2026-4719 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4719 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-4720 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:H/I:H/A:H o CVE-2026-4720 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-4721 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:H/I:H/A:H o CVE-2026-4721 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o openSUSE Leap 15.6 o SUSE Linux Enterprise Desktop 15 SP7 Affected o SUSE Linux Enterprise Real Time 15 SP7 Products: o SUSE Linux Enterprise Server 15 SP7 o SUSE Linux Enterprise Server for SAP Applications 15 SP7 o SUSE Linux Enterprise Workstation Extension 15 SP7 o SUSE Package Hub 15 15-SP7 An update that solves 40 vulnerabilities can now be installed. Description: This update for MozillaThunderbird fixes the following issues: Update to Mozilla Thunderbird 140.9 (MFSA 2026-24, bsc#1260083): o CVE-2026-3889: Spoofing issue in Thunderbird o CVE-2026-4371: Out of bounds read in IMAP parsing o CVE-2026-4684: Race condition, use-after-free in the Graphics: WebRender component o CVE-2026-4685: Incorrect boundary conditions in the Graphics: Canvas2D component o CVE-2026-4686: Incorrect boundary conditions in the Graphics: Canvas2D component o CVE-2026-4687: Sandbox escape due to incorrect boundary conditions in the Telemetry component o CVE-2026-4688: Sandbox escape due to use-after-free in the Disability Access APIs component o CVE-2026-4689: Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component o CVE-2026-4690: Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component o CVE-2026-4691: Use-after-free in the CSS Parsing and Computation component o CVE-2026-4692: Sandbox escape in the Responsive Design Mode component o CVE-2026-4693: Incorrect boundary conditions in the Audio/Video: Playback component o CVE-2026-4694: Incorrect boundary conditions, integer overflow in the Graphics component o CVE-2026-4695: Incorrect boundary conditions in the Audio/Video: Web Codecs component o CVE-2026-4696: Use-after-free in the Layout: Text and Fonts component o CVE-2026-4697: Incorrect boundary conditions in the Audio/Video: Web Codecs component o CVE-2026-4698: JIT miscompilation in the JavaScript Engine: JIT component o CVE-2026-4699: Incorrect boundary conditions in the Layout: Text and Fonts component o CVE-2026-4700: Mitigation bypass in the Networking: HTTP component o CVE-2026-4701: Use-after-free in the JavaScript Engine component o CVE-2026-4702: JIT miscompilation in the JavaScript Engine component o CVE-2026-4704: Denial-of-service in the WebRTC: Signaling component o CVE-2026-4705: Undefined behavior in the WebRTC: Signaling component o CVE-2026-4706: Incorrect boundary conditions in the Graphics: Canvas2D component o CVE-2026-4707: Incorrect boundary conditions in the Graphics: Canvas2D component o CVE-2026-4708: Incorrect boundary conditions in the Graphics component o CVE-2026-4709: Incorrect boundary conditions in the Audio/Video: GMP component o CVE-2026-4710: Incorrect boundary conditions in the Audio/Video component o CVE-2026-4711: Use-after-free in the Widget: Cocoa component o CVE-2026-4712: Information disclosure in the Widget: Cocoa component o CVE-2026-4713: Incorrect boundary conditions in the Graphics component o CVE-2026-4714: Incorrect boundary conditions in the Audio/Video component o CVE-2026-4715: Uninitialized memory in the Graphics: Canvas2D component o CVE-2026-4716: Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component o CVE-2026-4717: Privilege escalation in the Netmonitor component o CVE-2025-59375: Denial-of-service in the XML component o CVE-2026-4718: Undefined behavior in the WebRTC: Signaling component o CVE-2026-4719: Incorrect boundary conditions in the Graphics: Text component o CVE-2026-4720: Memory safety bugs fixed in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149 o CVE-2026-4721: Memory safety bugs fixed in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149 Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: o SUSE Package Hub 15 15-SP7 zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-1163= 1 o SUSE Linux Enterprise Workstation Extension 15 SP7 zypper in -t patch SUSE-SLE-Product-WE-15-SP7-2026-1163=1 o openSUSE Leap 15.6 zypper in -t patch openSUSE-SLE-15.6-2026-1163=1 Package List: o SUSE Package Hub 15 15-SP7 (aarch64 ppc64le s390x) MozillaThunderbird-debuginfo-140.9.0-150200.8.263.1 MozillaThunderbird-translations-common-140.9.0-150200.8.263.1 MozillaThunderbird-140.9.0-150200.8.263.1 MozillaThunderbird-translations-other-140.9.0-150200.8.263.1 MozillaThunderbird-debugsource-140.9.0-150200.8.263.1 o SUSE Linux Enterprise Workstation Extension 15 SP7 (x86_64) MozillaThunderbird-debuginfo-140.9.0-150200.8.263.1 MozillaThunderbird-translations-common-140.9.0-150200.8.263.1 MozillaThunderbird-140.9.0-150200.8.263.1 MozillaThunderbird-translations-other-140.9.0-150200.8.263.1 MozillaThunderbird-debugsource-140.9.0-150200.8.263.1 o openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64) MozillaThunderbird-debuginfo-140.9.0-150200.8.263.1 MozillaThunderbird-translations-common-140.9.0-150200.8.263.1 MozillaThunderbird-140.9.0-150200.8.263.1 MozillaThunderbird-translations-other-140.9.0-150200.8.263.1 MozillaThunderbird-debugsource-140.9.0-150200.8.263.1 References: o https://www.suse.com/security/cve/CVE-2025-59375.html o https://www.suse.com/security/cve/CVE-2026-3889.html o https://www.suse.com/security/cve/CVE-2026-4371.html o https://www.suse.com/security/cve/CVE-2026-4684.html o https://www.suse.com/security/cve/CVE-2026-4685.html o https://www.suse.com/security/cve/CVE-2026-4686.html o https://www.suse.com/security/cve/CVE-2026-4687.html o https://www.suse.com/security/cve/CVE-2026-4688.html o https://www.suse.com/security/cve/CVE-2026-4689.html o https://www.suse.com/security/cve/CVE-2026-4690.html o https://www.suse.com/security/cve/CVE-2026-4691.html o https://www.suse.com/security/cve/CVE-2026-4692.html o https://www.suse.com/security/cve/CVE-2026-4693.html o https://www.suse.com/security/cve/CVE-2026-4694.html o https://www.suse.com/security/cve/CVE-2026-4695.html o https://www.suse.com/security/cve/CVE-2026-4696.html o https://www.suse.com/security/cve/CVE-2026-4697.html o https://www.suse.com/security/cve/CVE-2026-4698.html o https://www.suse.com/security/cve/CVE-2026-4699.html o https://www.suse.com/security/cve/CVE-2026-4700.html o https://www.suse.com/security/cve/CVE-2026-4701.html o https://www.suse.com/security/cve/CVE-2026-4702.html o https://www.suse.com/security/cve/CVE-2026-4704.html o https://www.suse.com/security/cve/CVE-2026-4705.html o https://www.suse.com/security/cve/CVE-2026-4706.html o https://www.suse.com/security/cve/CVE-2026-4707.html o https://www.suse.com/security/cve/CVE-2026-4708.html o https://www.suse.com/security/cve/CVE-2026-4709.html o https://www.suse.com/security/cve/CVE-2026-4710.html o https://www.suse.com/security/cve/CVE-2026-4711.html o https://www.suse.com/security/cve/CVE-2026-4712.html o https://www.suse.com/security/cve/CVE-2026-4713.html o https://www.suse.com/security/cve/CVE-2026-4714.html o https://www.suse.com/security/cve/CVE-2026-4715.html o https://www.suse.com/security/cve/CVE-2026-4716.html o https://www.suse.com/security/cve/CVE-2026-4717.html o https://www.suse.com/security/cve/CVE-2026-4718.html o https://www.suse.com/security/cve/CVE-2026-4719.html o https://www.suse.com/security/cve/CVE-2026-4720.html o https://www.suse.com/security/cve/CVE-2026-4721.html o https://bugzilla.suse.com/show_bug.cgi?id=1260083 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. 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Risk Scores

CVSS v3.1

8.800000190734863

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Products

Vendor	Product	Versions
SUSE	MozillaThunderbird

Timeline

Apr 2, 2026 CVE Published

References

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