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firefox: thunderbird: Incorrect boundary conditions in the JavaScript: WebAssembly component

🗓️ 09 Dec 2025 07:58:10Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 9 Views

Incorrect boundary conditions in the JavaScript WebAssembly component affect Firefox and Thunderbird versions on Unix.

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Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.6aarch64thunderbird140.5.0-1.el8_6thunderbird-140.5.0-1.el8_6.aarch64.rpm
Red Hat Enterprise Linux8.6ppc64lethunderbird140.5.0-1.el8_6thunderbird-140.5.0-1.el8_6.ppc64le.rpm
Red Hat Enterprise Linux8.6s390xthunderbird140.5.0-1.el8_6thunderbird-140.5.0-1.el8_6.s390x.rpm
Red Hat Enterprise Linux8.6x86_64thunderbird140.5.0-1.el8_6thunderbird-140.5.0-1.el8_6.x86_64.rpm
Red Hat Enterprise Linux8.6aarch64thunderbird-debuginfo140.5.0-1.el8_6thunderbird-debuginfo-140.5.0-1.el8_6.aarch64.rpm
Red Hat Enterprise Linux8.6ppc64lethunderbird-debuginfo140.5.0-1.el8_6thunderbird-debuginfo-140.5.0-1.el8_6.ppc64le.rpm
Red Hat Enterprise Linux8.6s390xthunderbird-debuginfo140.5.0-1.el8_6thunderbird-debuginfo-140.5.0-1.el8_6.s390x.rpm
Red Hat Enterprise Linux8.6x86_64thunderbird-debuginfo140.5.0-1.el8_6thunderbird-debuginfo-140.5.0-1.el8_6.x86_64.rpm
Red Hat Enterprise Linux8.6aarch64thunderbird-debugsource140.5.0-1.el8_6thunderbird-debugsource-140.5.0-1.el8_6.aarch64.rpm
Red Hat Enterprise Linux8.6ppc64lethunderbird-debugsource140.5.0-1.el8_6thunderbird-debugsource-140.5.0-1.el8_6.ppc64le.rpm
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30 Jun 2026 03:31Current
6Medium risk
Vulners AI Score6
CVSS 3.17.5
EPSS0.00449
SSVC
9