PT-2025-30476 · Mozilla+10 · Thunderbird+12
Nan Wang
·
Published
2025-07-22
·
Updated
2026-02-02
·
CVE-2025-8027
CVSS v2.0
7.5
High
| Vector | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Name of the Vulnerable Software and Affected Versions
Firefox versions prior to 141
Firefox ESR versions prior to 115.26
Firefox ESR versions prior to 128.13
Firefox ESR versions prior to 140.1
Thunderbird versions prior to 141
Thunderbird versions prior to 128.13
Thunderbird versions prior to 140.1
Description
On 64-bit platforms, the IonMonkey-JIT component only wrote 32 bits of the 64-bit return value space on the stack, while the Baseline-JIT component read the entire 64 bits.
Recommendations
Update Firefox to version 141 or later.
Update Firefox ESR to version 115.26 or later.
Update Firefox ESR to version 128.13 or later.
Update Firefox ESR to version 140.1 or later.
Update Thunderbird to version 141 or later.
Update Thunderbird to version 128.13 or later.
Update Thunderbird to version 140.1 or later.
Fix
Unchecked Return Value
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Related Identifiers
Affected Products
Alt Linux
Almalinux
Centos
Debian
Firefox
Firefox Esr
Linuxmint
Red Hat
Red Os
Rocky Linux
Suse
Thunderbird
Ubuntu