SUSE-SU-2026:0260-1: important: Security update for MozillaFirefox
SLE-SECURITY-UPDATES
null at suse.de
Fri Jan 23 08:32:23 UTC 2026
# Security update for MozillaFirefox
Announcement ID: SUSE-SU-2026:0260-1
Release Date: 2026-01-22T16:12:21Z
Rating: important
References:
* bsc#1256340
Cross-References:
* CVE-2025-14327
* CVE-2026-0877
* CVE-2026-0878
* CVE-2026-0879
* CVE-2026-0880
* CVE-2026-0882
* CVE-2026-0883
* CVE-2026-0884
* CVE-2026-0885
* CVE-2026-0886
* CVE-2026-0887
* CVE-2026-0890
* CVE-2026-0891
CVSS scores:
* CVE-2025-14327 ( SUSE ): 5.1
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
* CVE-2025-14327 ( SUSE ): 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
* CVE-2025-14327 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
* CVE-2025-14327 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
* CVE-2026-0877 ( NVD ): 8.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
* CVE-2026-0878 ( NVD ): 8.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
* CVE-2026-0879 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-0880 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
* CVE-2026-0882 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
* CVE-2026-0883 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
* CVE-2026-0884 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-0885 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
* CVE-2026-0886 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
* CVE-2026-0887 ( NVD ): 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
* CVE-2026-0890 ( NVD ): 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
* CVE-2026-0891 ( NVD ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products:
* Desktop Applications Module 15-SP7
* openSUSE Leap 15.6
* SUSE Linux Enterprise Desktop 15 SP7
* SUSE Linux Enterprise High Performance Computing 15 SP4
* SUSE Linux Enterprise High Performance Computing 15 SP5
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
* SUSE Linux Enterprise Real Time 15 SP7
* SUSE Linux Enterprise Server 15 SP4
* SUSE Linux Enterprise Server 15 SP4 LTSS
* SUSE Linux Enterprise Server 15 SP5
* SUSE Linux Enterprise Server 15 SP5 LTSS
* SUSE Linux Enterprise Server 15 SP6
* SUSE Linux Enterprise Server 15 SP6 LTSS
* SUSE Linux Enterprise Server 15 SP7
* SUSE Linux Enterprise Server for SAP Applications 15 SP4
* SUSE Linux Enterprise Server for SAP Applications 15 SP5
* SUSE Linux Enterprise Server for SAP Applications 15 SP6
* SUSE Linux Enterprise Server for SAP Applications 15 SP7
An update that solves 13 vulnerabilities can now be installed.
## Description:
This update for MozillaFirefox fixes the following issues:
Update to Firefox Extended Support Release 140.7.0 ESR (bsc#1256340).
* MFSA 2026-03
* CVE-2026-0877: Mitigation bypass in the DOM: Security component
* CVE-2026-0878: Sandbox escape due to incorrect boundary conditions in the
Graphics: CanvasWebGL component
* CVE-2026-0879: Sandbox escape due to incorrect boundary conditions in the
Graphics component
* CVE-2026-0880: Sandbox escape due to integer overflow in the Graphics
component
* CVE-2026-0882: Use-after-free in the IPC component
* CVE-2025-14327: Spoofing issue in the Downloads Panel component
* CVE-2026-0883: Information disclosure in the Networking component
* CVE-2026-0884: Use-after-free in the JavaScript Engine component
* CVE-2026-0885: Use-after-free in the JavaScript: GC component
* CVE-2026-0886: Incorrect boundary conditions in the Graphics component
* CVE-2026-0887: Clickjacking issue, information disclosure in the PDF Viewer
component
* CVE-2026-0890: Spoofing issue in the DOM: Copy-Paste and Drag-Drop component
* CVE-2026-0891: Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird
ESR 140.7, Firefox 147 and Thunderbird 147
## 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:
* openSUSE Leap 15.6
zypper in -t patch openSUSE-SLE-15.6-2026-260=1
* Desktop Applications Module 15-SP7
zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-SP7-2026-260=1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-260=1
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-260=1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-260=1
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-260=1
* SUSE Linux Enterprise Server 15 SP4 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-260=1
* SUSE Linux Enterprise Server 15 SP5 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-260=1
* SUSE Linux Enterprise Server 15 SP6 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-260=1
* SUSE Linux Enterprise Server for SAP Applications 15 SP4
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-260=1
* SUSE Linux Enterprise Server for SAP Applications 15 SP5
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-260=1
* SUSE Linux Enterprise Server for SAP Applications 15 SP6
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-260=1
## Package List:
* openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64)
* MozillaFirefox-translations-other-140.7.0-150200.152.216.1
* MozillaFirefox-debugsource-140.7.0-150200.152.216.1
* MozillaFirefox-translations-common-140.7.0-150200.152.216.1
* MozillaFirefox-140.7.0-150200.152.216.1
* MozillaFirefox-branding-upstream-140.7.0-150200.152.216.1
* MozillaFirefox-debuginfo-140.7.0-150200.152.216.1
* openSUSE Leap 15.6 (noarch)
* MozillaFirefox-devel-140.7.0-150200.152.216.1
* Desktop Applications Module 15-SP7 (aarch64 ppc64le s390x x86_64)
* MozillaFirefox-translations-other-140.7.0-150200.152.216.1
* MozillaFirefox-debugsource-140.7.0-150200.152.216.1
* MozillaFirefox-translations-common-140.7.0-150200.152.216.1
* MozillaFirefox-140.7.0-150200.152.216.1
* MozillaFirefox-debuginfo-140.7.0-150200.152.216.1
* Desktop Applications Module 15-SP7 (noarch)
* MozillaFirefox-devel-140.7.0-150200.152.216.1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64
x86_64)
* MozillaFirefox-translations-other-140.7.0-150200.152.216.1
* MozillaFirefox-debugsource-140.7.0-150200.152.216.1
* MozillaFirefox-translations-common-140.7.0-150200.152.216.1
* MozillaFirefox-140.7.0-150200.152.216.1
* MozillaFirefox-debuginfo-140.7.0-150200.152.216.1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (noarch)
* MozillaFirefox-devel-140.7.0-150200.152.216.1
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64
x86_64)
* MozillaFirefox-translations-other-140.7.0-150200.152.216.1
* MozillaFirefox-debugsource-140.7.0-150200.152.216.1
* MozillaFirefox-translations-common-140.7.0-150200.152.216.1
* MozillaFirefox-140.7.0-150200.152.216.1
* MozillaFirefox-debuginfo-140.7.0-150200.152.216.1
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (noarch)
* MozillaFirefox-devel-140.7.0-150200.152.216.1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64
x86_64)
* MozillaFirefox-translations-other-140.7.0-150200.152.216.1
* MozillaFirefox-debugsource-140.7.0-150200.152.216.1
* MozillaFirefox-translations-common-140.7.0-150200.152.216.1
* MozillaFirefox-140.7.0-150200.152.216.1
* MozillaFirefox-debuginfo-140.7.0-150200.152.216.1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (noarch)
* MozillaFirefox-devel-140.7.0-150200.152.216.1
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64
x86_64)
* MozillaFirefox-translations-other-140.7.0-150200.152.216.1
* MozillaFirefox-debugsource-140.7.0-150200.152.216.1
* MozillaFirefox-translations-common-140.7.0-150200.152.216.1
* MozillaFirefox-140.7.0-150200.152.216.1
* MozillaFirefox-debuginfo-140.7.0-150200.152.216.1
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (noarch)
* MozillaFirefox-devel-140.7.0-150200.152.216.1
* SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64)
* MozillaFirefox-translations-other-140.7.0-150200.152.216.1
* MozillaFirefox-debugsource-140.7.0-150200.152.216.1
* MozillaFirefox-translations-common-140.7.0-150200.152.216.1
* MozillaFirefox-140.7.0-150200.152.216.1
* MozillaFirefox-debuginfo-140.7.0-150200.152.216.1
* SUSE Linux Enterprise Server 15 SP4 LTSS (noarch)
* MozillaFirefox-devel-140.7.0-150200.152.216.1
* SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)
* MozillaFirefox-translations-other-140.7.0-150200.152.216.1
* MozillaFirefox-debugsource-140.7.0-150200.152.216.1
* MozillaFirefox-translations-common-140.7.0-150200.152.216.1
* MozillaFirefox-140.7.0-150200.152.216.1
* MozillaFirefox-debuginfo-140.7.0-150200.152.216.1
* SUSE Linux Enterprise Server 15 SP5 LTSS (noarch)
* MozillaFirefox-devel-140.7.0-150200.152.216.1
* SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
* MozillaFirefox-translations-other-140.7.0-150200.152.216.1
* MozillaFirefox-debugsource-140.7.0-150200.152.216.1
* MozillaFirefox-translations-common-140.7.0-150200.152.216.1
* MozillaFirefox-140.7.0-150200.152.216.1
* MozillaFirefox-debuginfo-140.7.0-150200.152.216.1
* SUSE Linux Enterprise Server 15 SP6 LTSS (noarch)
* MozillaFirefox-devel-140.7.0-150200.152.216.1
* SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64)
* MozillaFirefox-translations-other-140.7.0-150200.152.216.1
* MozillaFirefox-debugsource-140.7.0-150200.152.216.1
* MozillaFirefox-translations-common-140.7.0-150200.152.216.1
* MozillaFirefox-140.7.0-150200.152.216.1
* MozillaFirefox-debuginfo-140.7.0-150200.152.216.1
* SUSE Linux Enterprise Server for SAP Applications 15 SP4 (noarch)
* MozillaFirefox-devel-140.7.0-150200.152.216.1
* SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)
* MozillaFirefox-translations-other-140.7.0-150200.152.216.1
* MozillaFirefox-debugsource-140.7.0-150200.152.216.1
* MozillaFirefox-translations-common-140.7.0-150200.152.216.1
* MozillaFirefox-140.7.0-150200.152.216.1
* MozillaFirefox-debuginfo-140.7.0-150200.152.216.1
* SUSE Linux Enterprise Server for SAP Applications 15 SP5 (noarch)
* MozillaFirefox-devel-140.7.0-150200.152.216.1
* SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
* MozillaFirefox-translations-other-140.7.0-150200.152.216.1
* MozillaFirefox-debugsource-140.7.0-150200.152.216.1
* MozillaFirefox-translations-common-140.7.0-150200.152.216.1
* MozillaFirefox-140.7.0-150200.152.216.1
* MozillaFirefox-debuginfo-140.7.0-150200.152.216.1
* SUSE Linux Enterprise Server for SAP Applications 15 SP6 (noarch)
* MozillaFirefox-devel-140.7.0-150200.152.216.1
## References:
* https://www.suse.com/security/cve/CVE-2025-14327.html
* https://www.suse.com/security/cve/CVE-2026-0877.html
* https://www.suse.com/security/cve/CVE-2026-0878.html
* https://www.suse.com/security/cve/CVE-2026-0879.html
* https://www.suse.com/security/cve/CVE-2026-0880.html
* https://www.suse.com/security/cve/CVE-2026-0882.html
* https://www.suse.com/security/cve/CVE-2026-0883.html
* https://www.suse.com/security/cve/CVE-2026-0884.html
* https://www.suse.com/security/cve/CVE-2026-0885.html
* https://www.suse.com/security/cve/CVE-2026-0886.html
* https://www.suse.com/security/cve/CVE-2026-0887.html
* https://www.suse.com/security/cve/CVE-2026-0890.html
* https://www.suse.com/security/cve/CVE-2026-0891.html
* https://bugzilla.suse.com/show_bug.cgi?id=1256340
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.suse.com/pipermail/sle-security-updates/attachments/20260123/581f079e/attachment.htm>
More information about the sle-security-updates
mailing list