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thunderbird: firefox: Some non-writable Object properties could be modified

🗓️ 15 Oct 2025 16:41:57Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 3 Views

A vulnerability allows modifying non-writable JavaScript object properties in older Firefox and Thunderbird versions.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9aarch64firefox0:140.4.0-3.el9_6firefox-0:140.4.0-3.el9_6.aarch64.rpm
Red Hat Enterprise Linux9ppc64lefirefox0:140.4.0-3.el9_6firefox-0:140.4.0-3.el9_6.ppc64le.rpm
Red Hat Enterprise Linux9s390xfirefox0:140.4.0-3.el9_6firefox-0:140.4.0-3.el9_6.s390x.rpm
Red Hat Enterprise Linux9x86_64firefox0:140.4.0-3.el9_6firefox-0:140.4.0-3.el9_6.x86_64.rpm
Red Hat Enterprise Linux9aarch64firefox-debuginfo0:140.4.0-3.el9_6firefox-debuginfo-0:140.4.0-3.el9_6.aarch64.rpm
Red Hat Enterprise Linux9ppc64lefirefox-debuginfo0:140.4.0-3.el9_6firefox-debuginfo-0:140.4.0-3.el9_6.ppc64le.rpm
Red Hat Enterprise Linux9s390xfirefox-debuginfo0:140.4.0-3.el9_6firefox-debuginfo-0:140.4.0-3.el9_6.s390x.rpm
Red Hat Enterprise Linux9x86_64firefox-debuginfo0:140.4.0-3.el9_6firefox-debuginfo-0:140.4.0-3.el9_6.x86_64.rpm
Red Hat Enterprise Linux9aarch64firefox-debugsource0:140.4.0-3.el9_6firefox-debugsource-0:140.4.0-3.el9_6.aarch64.rpm
Red Hat Enterprise Linux9ppc64lefirefox-debugsource0:140.4.0-3.el9_6firefox-debugsource-0:140.4.0-3.el9_6.ppc64le.rpm
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18 Mar 2026 03:08Current
6.5Medium risk
Vulners AI Score6.5
CVSS 3.16.5
EPSS0.00031
SSVC
3