SUSE-SU-2026:1830-1: important: Security update for MozillaFirefox

Wed May 13 16:30:56 UTC 2026

# Security update for MozillaFirefox

Announcement ID: SUSE-SU-2026:1830-1  
Release Date: 2026-05-12T12:00:51Z  
Rating: important  
References:

  * bsc#1263110
  * bsc#1264378

Cross-References:

  * CVE-2026-7320
  * CVE-2026-7321
  * CVE-2026-7322
  * CVE-2026-7323
  * CVE-2026-8090
  * CVE-2026-8091
  * CVE-2026-8092
  * CVE-2026-8094

CVSS scores:

  * 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
  * 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
  * 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
  * 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
  * CVE-2026-8090 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2026-8090 ( NVD ):  7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
  * CVE-2026-8091 ( SUSE ):  8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2026-8091 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-8092 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2026-8092 ( NVD ):  8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-8094 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2026-8094 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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 eight vulnerabilities can now be installed.

## Description:

This update for MozillaFirefox fixes the following issues

Updated to Firefox Extended Support Release 140.10.2 ESR (bsc#1264378,MFSA
2026-41):

  * CVE-2026-8090: Use-after-free in the DOM: Networking component.
  * CVE-2026-8092: Memory safety bugs fixed in Firefox ESR 115.35.2, Firefox ESR
    140.10.2 and Firefox 150.0.2.
  * CVE-2026-8094: Other issue in the WebRTC component.

Updated to Firefox Extended Support Release 140.10.1 ESR (bsc#1263110,MFSA
2026-36):

  * CVE-2026-7320: Information disclosure due to incorrect boundary conditions
    in the Audio/Video component.
  * CVE-2026-7321: Sandbox escape due to incorrect boundary conditions in the
    WebRTC: Networking component.
  * CVE-2026-7322: Memory safety bugs fixed in Firefox ESR 115.35.1, Firefox ESR
    140.10.1 and Firefox 150.0.1.
  * CVE-2026-7323: Memory safety bugs fixed in Firefox ESR 140.10.1 and Firefox
    150.0.1.
  * CVE-2026-8091: Incorrect boundary conditions in the Audio/Video: Playback
    component.

## 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-2026-1830=1

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-1830=1

## Package List:

  * SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * MozillaFirefox-140.10.2-112.313.1
    * MozillaFirefox-debugsource-140.10.2-112.313.1
    * MozillaFirefox-translations-common-140.10.2-112.313.1
    * MozillaFirefox-debuginfo-140.10.2-112.313.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS (noarch)
    * MozillaFirefox-devel-140.10.2-112.313.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    * MozillaFirefox-140.10.2-112.313.1
    * MozillaFirefox-debugsource-140.10.2-112.313.1
    * MozillaFirefox-translations-common-140.10.2-112.313.1
    * MozillaFirefox-debuginfo-140.10.2-112.313.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (noarch)
    * MozillaFirefox-devel-140.10.2-112.313.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-7320.html
  * https://www.suse.com/security/cve/CVE-2026-7321.html
  * https://www.suse.com/security/cve/CVE-2026-7322.html
  * https://www.suse.com/security/cve/CVE-2026-7323.html
  * https://www.suse.com/security/cve/CVE-2026-8090.html
  * https://www.suse.com/security/cve/CVE-2026-8091.html
  * https://www.suse.com/security/cve/CVE-2026-8092.html
  * https://www.suse.com/security/cve/CVE-2026-8094.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1263110
  * https://bugzilla.suse.com/show_bug.cgi?id=1264378

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