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openSUSE Leap 16.0 MozillaFirefox Important Security Update 2026-20621-1

opensuse
Calendar Grey April 27, 2026
Dist Opensuse Esm H88
Update for openSUSE MozillaFirefox fixes 25 issues and one bug, crucial for system protection and safety.
An update that solves 25 vulnerabilities and has one bug fix can now be installed.

Description

This update for MozillaFirefox fixes the following issues:

Update to Firefox Extended Support Release 140.10.0 ESR.

- MFSA 2026-32 (bsc#1262230):

* CVE-2026-6746: Use-after-free in the DOM: Core & HTML component

* CVE-2026-6747: Use-after-free in the WebRTC component

* CVE-2026-6748: Uninitialized memory in the Audio/Video: Web Codecs component

* CVE-2026-6749: Information disclosure due to uninitialized memory in the Graphics: Canvas2D component

* CVE-2026-6750: Privilege escalation in the Graphics: WebRender component

* CVE-2026-6751: Uninitialized memory in the Audio/Video: Web Codecs component

* CVE-2026-6752: Incorrect boundary conditions in the WebRTC component

* CVE-2026-6753: Incorrect boundary conditions in the WebRTC component

* CVE-2026-6754: Use-after-free in the JavaScript Engine component

* CVE-2026-6757: Invalid pointer in the JavaScript: WebAssembly component

* CVE-2026-6759: Use-after-free in the Widget: Cocoa component

* CVE-2026-6761: Privilege...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory privilege escalation important information disclosure OpenSUSE MozillaFirefox

Patch

Package List

- openSUSE Leap 16.0:

MozillaFirefox-140.10.0-160000.1.1

MozillaFirefox-branding-upstream-140.10.0-160000.1.1

MozillaFirefox-devel-140.10.0-160000.1.1

MozillaFirefox-translations-common-140.10.0-160000.1.1

MozillaFirefox-translations-other-140.10.0-160000.1.1

References

* bsc#1262230

References:

* https://www.suse.com/security/cve/CVE-2026-6746.html

* https://www.suse.com/security/cve/CVE-2026-6747.html

* https://www.suse.com/security/cve/CVE-2026-6748.html

* https://www.suse.com/security/cve/CVE-2026-6749.html

* https://www.suse.com/security/cve/CVE-2026-6750.html

* https://www.suse.com/security/cve/CVE-2026-6751.html

* https://www.suse.com/security/cve/CVE-2026-6752.html

* https://www.suse.com/security/cve/CVE-2026-6753.html

* https://www.suse.com/security/cve/CVE-2026-6754.html

* https://www.suse.com/security/cve/CVE-2026-6757.html

* https://www.suse.com/security/cve/CVE-2026-6759.html

* https://www.suse.com/security/cve/CVE-2026-6761.html

* https://www.suse.com/security/cve/CVE-2026-6762.html

* https://www.suse.com/security/cve/CVE-2026-6763.html

* https://www.suse.com/security/cve/CVE-2026-6764.html

* https://www.suse.com/security/cve/CVE-2026-6765.html

* https://www.suse.com/security/cve/CVE-2026-6766.html

* https://www.suse.com/security/cve/CVE-2026-6767.html

*...

Read the Full Advisory

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: openSUSE-SU-2026:20621-1
Rating: important
Affected Products: openSUSE Leap 16.0 -------------------------------------------------------------

Topics%20covered

Topics Covered

security advisory privilege escalation important information disclosure OpenSUSE MozillaFirefox

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