On 64-bit platforms IonMonkey-JIT only wrote 32 bits of the 64-bit return value space on the stack. Baseline-JIT, however, read the entire 64 bits. This vulnerability was fixed in Firefox 141, Firefox ESR 115.26, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade thunderbirdUpgrade firefox-x11Upgrade firefox | Jul 31, 2025 | Jul 24, 2025 |
| Amazon Linux Ami 2 | — | Upgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade firefoxUpgrade thunderbird | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade firefox-debugsourceUpgrade firefox-debuginfoUpgrade firefox | Aug 19, 2025 | Jul 22, 2025 |
| Debian | — | Upgrade firefox-esrUpgrade thunderbird | Jul 24, 2025 | Jul 22, 2025 |
| Freebsd | — | Upgrade thunderbird-esrUpgrade thunderbirdUpgrade firefoxUpgrade firefox-esr | Jul 25, 2025 | Jul 24, 2025 |
| Mfsa2025 56 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 141.0 | Jul 23, 2025 | Jul 22, 2025 |
| Mfsa2025 57 | — | Upgrade to Mozilla Firefox ESR version 115.26Upgrade to the latest version of Mozilla Firefox | Jul 23, 2025 | Jul 22, 2025 |
| Mfsa2025 58 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 128.13 | Jul 23, 2025 | Jul 22, 2025 |
| Mfsa2025 59 | — | Upgrade to Mozilla Firefox ESR version 140.1Upgrade to the latest version of Mozilla Firefox | Jul 23, 2025 | Jul 22, 2025 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 140.1 | Jul 23, 2025 | Jul 22, 2025 |
| Oracle_linux | — | Upgrade firefox-x11Upgrade thunderbirdUpgrade firefox | Jul 28, 2025 | Jul 22, 2025 |
| Redhat_linux | — | Upgrade firefox-debugsourceNo solution existsUpgrade firefoxUpgrade thunderbirdUpgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade firefox-x11Upgrade thunderbird-debugsource | Jul 25, 2025 | Jul 22, 2025 |
| Rocky_linux | — | Upgrade firefox-x11Upgrade thunderbird-debuginfoUpgrade firefoxUpgrade firefox-debugsourceUpgrade firefox-debuginfoUpgrade thunderbird-debugsourceUpgrade thunderbird | Feb 5, 2026 | Sep 8, 2025 |
| Suse | — | Upgrade mozillafirefox-branding-sleUpgrade MozillaFirefoxUpgrade gstreamer-plugin-pipewireUpgrade libpipewire-0_3-0Upgrade pipewire-modulesUpgrade pipewire-spa-plugins-0_2Upgrade MozillaFirefox-translations-commonUpgrade xdg-desktop-portalUpgrade pipewire-modules-0_3Upgrade MozillaThunderbird-translations-otherUpgrade mozillafirefox-branding-upstreamUpgrade pipewireUpgrade xdg-desktop-portal-langUpgrade MozillaThunderbirdUpgrade MozillaThunderbird-translations-commonUpgrade MozillaFirefox-translations-otherUpgrade xdg-desktop-portal-develUpgrade MozillaFirefox-develUpgrade pipewire-langUpgrade pipewire-spa-toolsUpgrade pipewire-tools | Aug 14, 2025 | Jul 26, 2025 |
| Ubuntu | — | Upgrade thunderbird | Jul 24, 2025 | Jul 22, 2025 |
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