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firefox: Memory safety bugs fixed in Firefox ESR 140.11 and Firefox 151

🗓️ 27 May 2026 16:58:07Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 8 Views

Memory safety bugs fixed in Firefox ESR 140.11 and Firefox 151; some could allow code execution.

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Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9aarch64firefox0:140.11.0-1.el9_8firefox-0:140.11.0-1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9ppc64lefirefox0:140.11.0-1.el9_8firefox-0:140.11.0-1.el9_8.ppc64le.rpm
Red Hat Enterprise Linux9s390xfirefox0:140.11.0-1.el9_8firefox-0:140.11.0-1.el9_8.s390x.rpm
Red Hat Enterprise Linux9x86_64firefox0:140.11.0-1.el9_8firefox-0:140.11.0-1.el9_8.x86_64.rpm
Red Hat Enterprise Linux9aarch64firefox-debuginfo0:140.11.0-1.el9_8firefox-debuginfo-0:140.11.0-1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9ppc64lefirefox-debuginfo0:140.11.0-1.el9_8firefox-debuginfo-0:140.11.0-1.el9_8.ppc64le.rpm
Red Hat Enterprise Linux9s390xfirefox-debuginfo0:140.11.0-1.el9_8firefox-debuginfo-0:140.11.0-1.el9_8.s390x.rpm
Red Hat Enterprise Linux9x86_64firefox-debuginfo0:140.11.0-1.el9_8firefox-debuginfo-0:140.11.0-1.el9_8.x86_64.rpm
Red Hat Enterprise Linux9aarch64firefox-debugsource0:140.11.0-1.el9_8firefox-debugsource-0:140.11.0-1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9ppc64lefirefox-debugsource0:140.11.0-1.el9_8firefox-debugsource-0:140.11.0-1.el9_8.ppc64le.rpm
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03 Jun 2026 04:07Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.18.8
EPSS0.00045
SSVC
8