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firefox: thunderbird: Internally found bugs fixed in Firefox ESR 140.14, Firefox ESR 153.1 and Firefox 154

🗓️ 08 Sep 2026 05:08:42Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 3 Views

Internally found memory corruption bugs in Firefox 154 and Thunderbird 153, presumed exploitable.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux10.0aarch64firefox140.14.0-1.el10_0firefox-140.14.0-1.el10_0.aarch64.rpm
Red Hat Enterprise Linux10.0ppc64lefirefox140.14.0-1.el10_0firefox-140.14.0-1.el10_0.ppc64le.rpm
Red Hat Enterprise Linux10.0s390xfirefox140.14.0-1.el10_0firefox-140.14.0-1.el10_0.s390x.rpm
Red Hat Enterprise Linux10.0x86_64firefox140.14.0-1.el10_0firefox-140.14.0-1.el10_0.x86_64.rpm
Red Hat Enterprise Linux10.0aarch64firefox-debuginfo140.14.0-1.el10_0firefox-debuginfo-140.14.0-1.el10_0.aarch64.rpm
Red Hat Enterprise Linux10.0ppc64lefirefox-debuginfo140.14.0-1.el10_0firefox-debuginfo-140.14.0-1.el10_0.ppc64le.rpm
Red Hat Enterprise Linux10.0s390xfirefox-debuginfo140.14.0-1.el10_0firefox-debuginfo-140.14.0-1.el10_0.s390x.rpm
Red Hat Enterprise Linux10.0x86_64firefox-debuginfo140.14.0-1.el10_0firefox-debuginfo-140.14.0-1.el10_0.x86_64.rpm
Red Hat Enterprise Linux10.0aarch64firefox-debugsource140.14.0-1.el10_0firefox-debugsource-140.14.0-1.el10_0.aarch64.rpm
Red Hat Enterprise Linux10.0ppc64lefirefox-debugsource140.14.0-1.el10_0firefox-debugsource-140.14.0-1.el10_0.ppc64le.rpm
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08 Sep 2026 22:25Current
CVSS 3.19.8
EPSS0.00523
SSVC
3