Memory safety bugs present in Firefox ESR 128.12, Thunderbird ESR 128.12, Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 141, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.
CVSS Details
- CVSS 3.1 Base Score: 8.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade firefox-x11Upgrade thunderbirdUpgrade firefox | Jul 31, 2025 | Jul 24, 2025 |
| Amazon Linux Ami 2 | — | Upgrade thunderbirdUpgrade firefoxUpgrade firefox-debuginfoUpgrade thunderbird-debuginfo | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade firefox-debugsourceUpgrade firefox-debuginfoUpgrade firefox | Aug 19, 2025 | Jul 22, 2025 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Jul 24, 2025 | Jul 22, 2025 |
| Freebsd | — | Upgrade firefox-esrUpgrade thunderbirdUpgrade thunderbird-esrUpgrade firefox | Jul 25, 2025 | Jul 24, 2025 |
| Mfsa2025 56 | — | Upgrade to Mozilla Firefox version 141.0Upgrade 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 firefoxUpgrade thunderbird | Jul 28, 2025 | Jul 22, 2025 |
| Redhat_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade thunderbird-debugsourceUpgrade thunderbird-debuginfoUpgrade firefox-debugsourceUpgrade firefox-debuginfoNo solution existsUpgrade firefox-x11 | Jul 25, 2025 | Jul 22, 2025 |
| Rocky_linux | — | Upgrade thunderbird-debuginfoUpgrade thunderbirdUpgrade firefox-x11Upgrade firefox-debugsourceUpgrade firefoxUpgrade thunderbird-debugsourceUpgrade firefox-debuginfo | Feb 5, 2026 | Sep 8, 2025 |
| Suse | — | Upgrade libpipewire-0_3-0Upgrade xdg-desktop-portalUpgrade pipewire-spa-toolsUpgrade MozillaThunderbird-translations-commonUpgrade xdg-desktop-portal-langUpgrade mozillafirefox-branding-upstreamUpgrade pipewire-spa-plugins-0_2Upgrade MozillaFirefox-translations-otherUpgrade gstreamer-plugin-pipewireUpgrade pipewire-modules-0_3Upgrade MozillaThunderbirdUpgrade pipewire-langUpgrade pipewireUpgrade MozillaThunderbird-translations-otherUpgrade MozillaFirefox-develUpgrade mozillafirefox-branding-sleUpgrade MozillaFirefoxUpgrade pipewire-toolsUpgrade xdg-desktop-portal-develUpgrade pipewire-modulesUpgrade MozillaFirefox-translations-common | Dec 5, 2025 | Jul 26, 2025 |
| Ubuntu | — | Upgrade thunderbird | Jul 24, 2025 | Jul 22, 2025 |
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