SUSE-SU-2026:0602-1: important: Security update for MozillaFirefox

[SLE-SECURITY-UPDATES]

# Security update for MozillaFirefox

Announcement ID: SUSE-SU-2026:0602-1  
Release Date: 2026-02-24T08:48:23Z  
Rating: important  
References:

  * bsc#1258231

  
Cross-References:

  * CVE-2026-2447

  
CVSS scores:

  * CVE-2026-2447 ( SUSE ):  9.2
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-2447 ( SUSE ):  8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-2447 ( NVD ):  8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

  
Affected Products:

  * SUSE Linux Enterprise High Performance Computing 12 SP5
  * SUSE Linux Enterprise Server 12 SP5
  * SUSE Linux Enterprise Server 12 SP5 LTSS
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
  * SUSE Linux Enterprise Server for SAP Applications 12 SP5

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for MozillaFirefox fixes the following issues:

  * Update to Firefox 140.7.1 ESR
  * CVE-2026-2447: Fixed a heap buffer overflow in libvpx. (bsc#1258231)

## 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:

  * SUSE Linux Enterprise Server 12 SP5 LTSS  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2026-602=1

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-602=1

## Package List:

  * SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * MozillaFirefox-debugsource-140.7.1-112.298.1
    * MozillaFirefox-debuginfo-140.7.1-112.298.1
    * MozillaFirefox-translations-common-140.7.1-112.298.1
    * MozillaFirefox-140.7.1-112.298.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS (noarch)
    * MozillaFirefox-devel-140.7.1-112.298.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    * MozillaFirefox-debugsource-140.7.1-112.298.1
    * MozillaFirefox-debuginfo-140.7.1-112.298.1
    * MozillaFirefox-translations-common-140.7.1-112.298.1
    * MozillaFirefox-140.7.1-112.298.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (noarch)
    * MozillaFirefox-devel-140.7.1-112.298.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-2447.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1258231

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