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openSUSE Leap 15.6 Mozilla Thunderbird Heap Overflow Fix 2026-0692-1

suse
Calendar Grey February 27, 2026
Dist Suse Esm H88
An important update for MozillaThunderbird addressing a heap buffer overflow vulnerability. Install now for security.
An update that solves one vulnerability can now be installed.

Summary

## This update for MozillaThunderbird fixes the following issues: * Update to Thunderbird 140.7.2 * 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 Package Hub 15 15-SP7 zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-692=1 * SUSE Linux Enterprise Workstation Extension 15 SP7 zypper in -t patch SUSE-SLE-Product-WE-15-SP7-2026-692=1 * openSUSE Leap 15.6 zypper in -t patch openSUSE-SLE-15.6-2026-692=1 ## Package List: * SUSE Package Hub 15 15-SP7 (aarch64 ppc64le s390x) * MozillaThunderbird-translations-common-140.7.2-150200.8.257.1

Topics%20covered

Topics Covered

security advisory important OpenSUSE heap buffer overflow MozillaThunderbird cve-2026-2447

References

* bsc#1258231

Cross-

* 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:

* openSUSE Leap 15.6

* SUSE Linux Enterprise Desktop 15 SP7

* SUSE Linux Enterprise Real Time 15 SP7

* SUSE Linux Enterprise Server 15 SP7

* SUSE Linux Enterprise Server for SAP Applications 15 SP7

* SUSE Linux Enterprise Workstation Extension 15 SP7

* SUSE Package Hub 15 15-SP7

An update that solves one vulnerability can now be installed.

##

* https://www.suse.com/security/cve/CVE-2026-2447.html

* https://bugzilla.suse.com/show_bug.cgi?id=1258231

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0692-1
Release Date: 2026-02-27T15:12:07Z
Rating: important

Topics%20covered

Topics Covered

security advisory important OpenSUSE heap buffer overflow MozillaThunderbird cve-2026-2447

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