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 firefoxUpgrade thunderbird | Jul 31, 2025 | Jul 24, 2025 |
| Amazon Linux Ami 2 | — | Upgrade thunderbirdUpgrade firefoxUpgrade thunderbird-debuginfoUpgrade firefox-debuginfo | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade firefoxUpgrade firefox-debuginfoUpgrade firefox-debugsource | Aug 19, 2025 | Jul 22, 2025 |
| Debian | — | Upgrade firefox-esrUpgrade thunderbird | Jul 24, 2025 | Jul 22, 2025 |
| Freebsd | — | Upgrade firefox-esrUpgrade firefoxUpgrade thunderbird-esrUpgrade thunderbird | Jul 25, 2025 | Jul 24, 2025 |
| Mfsa2025 56 | — | Upgrade to Mozilla Firefox version 141.0 | Jul 23, 2025 | Jul 22, 2025 |
| Mfsa2025 58 | — | Upgrade to Mozilla Firefox ESR version 128.13 | Jul 23, 2025 | Jul 22, 2025 |
| Mfsa2025 59 | — | Upgrade to Mozilla Firefox ESR version 140.1 | Jul 23, 2025 | Jul 22, 2025 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 140.1 | Jul 23, 2025 | Jul 22, 2025 |
| Oracle_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade firefox-x11 | Jul 28, 2025 | Jul 22, 2025 |
| Redhat_linux | — | Upgrade firefox-x11Upgrade thunderbird-debuginfoUpgrade firefox-debugsourceUpgrade firefox-debuginfoNo solution existsUpgrade thunderbirdUpgrade thunderbird-debugsourceUpgrade firefox | Jul 25, 2025 | Jul 22, 2025 |
| Rocky_linux | — | Upgrade firefox-debuginfoUpgrade thunderbird-debugsourceUpgrade thunderbird-debuginfoUpgrade firefox-x11Upgrade firefox-debugsourceUpgrade firefoxUpgrade thunderbird | Feb 5, 2026 | Sep 8, 2025 |
| Suse | — | Upgrade pipewire-langUpgrade pipewireUpgrade pipewire-modulesUpgrade pipewire-modules-0_3Upgrade mozillafirefox-branding-sleUpgrade mozillathunderbird-translations-commonUpgrade mozillathunderbirdUpgrade pipewire-toolsUpgrade xdg-desktop-portal-develUpgrade mozillafirefox-translations-commonUpgrade mozillathunderbird-translations-otherUpgrade gstreamer-plugin-pipewireUpgrade xdg-desktop-portal-langUpgrade pipewire-spa-toolsUpgrade mozillafirefox-translations-otherUpgrade xdg-desktop-portalUpgrade mozillafirefox-branding-upstreamUpgrade pipewire-spa-plugins-0_2Upgrade mozillafirefox-develUpgrade mozillafirefoxUpgrade libpipewire-0_3-0 | Dec 5, 2025 | Jul 26, 2025 |
| Ubuntu | — | Upgrade thunderbird | Jul 24, 2025 | Jul 22, 2025 |
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