ESB-2026.4843

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.4843 Security update for MozillaThunderbird 8 May 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: MozillaThunderbird Publisher: SUSE Operating System: SUSE Resolution: Patch/Upgrade CVE Names: CVE-2026-7320 CVE-2026-7321 CVE-2026-7322 CVE-2026-7323 CVE-2026-6746 CVE-2026-6747 CVE-2026-6748 CVE-2026-6749 CVE-2026-6750 CVE-2026-6751 CVE-2026-6752 CVE-2026-6753 CVE-2026-6754 CVE-2026-6757 CVE-2026-6759 CVE-2026-6761 CVE-2026-6762 CVE-2026-6763 CVE-2026-6764 CVE-2026-6765 CVE-2026-6766 CVE-2026-6767 CVE-2026-6769 CVE-2026-6770 CVE-2026-6771 CVE-2026-6772 CVE-2026-6776 CVE-2026-6785 CVE-2026-6786 Original Bulletin: https://www.suse.com/support/update/announcement/2026/suse-su-20261741-1 Comment: CVSS (Max): 9.8 CVE-2026-6771 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) CVSS Source: CISA-ADP Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H EPSS (Max): 0.1% (19th) CVE-2026-6785 2026-05-07 - --------------------------BEGIN INCLUDED TEXT-------------------- Security update for MozillaThunderbird Announcement ID: SUSE-SU-2026:1741-1 Release Date: 2026-05-07T07:01:07Z Rating: important o bsc#1262230 References: o bsc#1263110 o CVE-2026-6746 o CVE-2026-6747 o CVE-2026-6748 o CVE-2026-6749 o CVE-2026-6750 o CVE-2026-6751 o CVE-2026-6752 o CVE-2026-6753 o CVE-2026-6754 o CVE-2026-6757 o CVE-2026-6759 o CVE-2026-6761 o CVE-2026-6762 o CVE-2026-6763 Cross-References: o CVE-2026-6764 o CVE-2026-6765 o CVE-2026-6766 o CVE-2026-6767 o CVE-2026-6769 o CVE-2026-6770 o CVE-2026-6771 o CVE-2026-6772 o CVE-2026-6776 o CVE-2026-6785 o CVE-2026-6786 o CVE-2026-7320 o CVE-2026-7321 o CVE-2026-7322 o CVE-2026-7323 o CVE-2026-6746 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-6747 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-6748 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-6749 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:N/A:N o CVE-2026-6750 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:H/I:H/A:H o CVE-2026-6751 ( NVD ): 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:L/I:L/A:L o CVE-2026-6752 ( NVD ): 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:L/I:L/A:L o CVE-2026-6753 ( NVD ): 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:L/I:L/A:L o CVE-2026-6754 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-6757 ( NVD ): 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:L/I:L/A:L o CVE-2026-6759 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-6761 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:H/I:H/A:H o CVE-2026-6762 ( NVD ): 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:L/I:L/A:L o CVE-2026-6763 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:L/I:L/A:N o CVE-2026-6764 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ CVSS scores: S:U/C:N/I:L/A:L o CVE-2026-6765 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:L/I:N/A:N o CVE-2026-6766 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:N/A:N o CVE-2026-6767 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:L/I:N/A:N o CVE-2026-6769 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:H/I:H/A:H o CVE-2026-6770 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:L/I:N/A:L o CVE-2026-6771 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-6772 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:N/A:N o CVE-2026-6776 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/ S:U/C:H/I:H/A:H o CVE-2026-6785 ( NVD ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-6786 ( NVD ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-7320 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:N/A:N o CVE-2026-7321 ( NVD ): 9.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:C/C:H/I:H/A:H o CVE-2026-7322 ( NVD ): 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:L/I:L/A:L o CVE-2026-7323 ( NVD ): 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:L/I:L/A:L o SUSE Linux Enterprise Desktop 15 SP7 o SUSE Linux Enterprise Real Time 15 SP7 Affected o SUSE Linux Enterprise Server 15 SP7 Products: 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 29 vulnerabilities can now be installed. Description: This update for MozillaThunderbird fixes the following issues Updated to Mozilla Thunderbird 140.10.1: MFSA 2026-34 (bsc#1262230): o CVE-2026-6746: Use-after-free in the DOM: Core & HTML component. o CVE-2026-6747: Use-after-free in the WebRTC component. o CVE-2026-6748: Uninitialized memory in the Audio/Video: Web Codecs component. o CVE-2026-6749: Information disclosure due to uninitialized memory in the Graphics: Canvas2D component. o CVE-2026-6750: Privilege escalation in the Graphics: WebRender component. o CVE-2026-6751: Uninitialized memory in the Audio/Video: Web Codecs component. o CVE-2026-6752: Incorrect boundary conditions in the WebRTC component. o CVE-2026-6753: Incorrect boundary conditions in the WebRTC component. o CVE-2026-6754: Use-after-free in the JavaScript Engine component. o CVE-2026-6757: Invalid pointer in the JavaScript: WebAssembly component. o CVE-2026-6759: Use-after-free in the Widget: Cocoa component. o CVE-2026-6761: Privilege escalation in the Networking component. o CVE-2026-6762: Spoofing issue in the DOM: Core & HTML component. o CVE-2026-6763: Mitigation bypass in the File Handling component. o CVE-2026-6764: Incorrect boundary conditions in the DOM: Device Interfaces component. o CVE-2026-6765: Information disclosure in the Form Autofill component. o CVE-2026-6766: Incorrect boundary conditions in the Libraries component in NSS. o CVE-2026-6767: Other issue in the Libraries component in NSS. o CVE-2026-6769: Privilege escalation in the Debugger component. o CVE-2026-6770: Other issue in the Storage: IndexedDB component. o CVE-2026-6771: Mitigation bypass in the DOM: Security component. o CVE-2026-6772: Incorrect boundary conditions in the Libraries component in NSS. o CVE-2026-6776: Incorrect boundary conditions in the WebRTC: Networking component. o CVE-2026-6785: Memory safety bugs fixed in Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox 150 and Thunderbird 150. o CVE-2026-6786: Memory safety bugs fixed in Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox 150 and Thunderbird 150. MFSA 2026-39 (bsc#1263110): o CVE-2026-7320: Information disclosure due to incorrect boundary conditions in the Audio/Video component. o CVE-2026-7321: Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. o CVE-2026-7322: Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1. o CVE-2026-7323: Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1. Other updates and bugfixes: o Fixed: Newly translated strings were not available in Thunderbird. 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-SP7-2026-1741= 1 o SUSE Linux Enterprise Workstation Extension 15 SP7 zypper in -t patch SUSE-SLE-Product-WE-15-SP7-2026-1741=1 Package List: o SUSE Package Hub 15 15-SP7 (aarch64 ppc64le s390x) MozillaThunderbird-debuginfo-140.10.1-150200.8.271.1 MozillaThunderbird-debugsource-140.10.1-150200.8.271.1 MozillaThunderbird-translations-other-140.10.1-150200.8.271.1 MozillaThunderbird-140.10.1-150200.8.271.1 MozillaThunderbird-translations-common-140.10.1-150200.8.271.1 o SUSE Linux Enterprise Workstation Extension 15 SP7 (x86_64) MozillaThunderbird-debuginfo-140.10.1-150200.8.271.1 MozillaThunderbird-debugsource-140.10.1-150200.8.271.1 MozillaThunderbird-translations-other-140.10.1-150200.8.271.1 MozillaThunderbird-140.10.1-150200.8.271.1 MozillaThunderbird-translations-common-140.10.1-150200.8.271.1 References: o https://www.suse.com/security/cve/CVE-2026-6746.html o https://www.suse.com/security/cve/CVE-2026-6747.html o https://www.suse.com/security/cve/CVE-2026-6748.html o https://www.suse.com/security/cve/CVE-2026-6749.html o https://www.suse.com/security/cve/CVE-2026-6750.html o https://www.suse.com/security/cve/CVE-2026-6751.html o https://www.suse.com/security/cve/CVE-2026-6752.html o https://www.suse.com/security/cve/CVE-2026-6753.html o https://www.suse.com/security/cve/CVE-2026-6754.html o https://www.suse.com/security/cve/CVE-2026-6757.html o https://www.suse.com/security/cve/CVE-2026-6759.html o https://www.suse.com/security/cve/CVE-2026-6761.html o https://www.suse.com/security/cve/CVE-2026-6762.html o https://www.suse.com/security/cve/CVE-2026-6763.html o https://www.suse.com/security/cve/CVE-2026-6764.html o https://www.suse.com/security/cve/CVE-2026-6765.html o https://www.suse.com/security/cve/CVE-2026-6766.html o https://www.suse.com/security/cve/CVE-2026-6767.html o https://www.suse.com/security/cve/CVE-2026-6769.html o https://www.suse.com/security/cve/CVE-2026-6770.html o https://www.suse.com/security/cve/CVE-2026-6771.html o https://www.suse.com/security/cve/CVE-2026-6772.html o https://www.suse.com/security/cve/CVE-2026-6776.html o https://www.suse.com/security/cve/CVE-2026-6785.html o https://www.suse.com/security/cve/CVE-2026-6786.html o https://www.suse.com/security/cve/CVE-2026-7320.html o https://www.suse.com/security/cve/CVE-2026-7321.html o https://www.suse.com/security/cve/CVE-2026-7322.html o https://www.suse.com/security/cve/CVE-2026-7323.html o https://bugzilla.suse.com/show_bug.cgi?id=1262230 o https://bugzilla.suse.com/show_bug.cgi?id=1263110 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. 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