Memory safety bugs present in Firefox 139 and Thunderbird 139. 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 140 and Thunderbird 140.
CVSS Details
- CVSS 3.1 Base Score: 8.1
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Freebsd | — | Upgrade firefox | Jul 5, 2025 | Jul 4, 2025 |
| Mfsa2025 51 | — | Upgrade to Mozilla Firefox version 140.0Upgrade to the latest version of Mozilla Firefox | Jun 25, 2025 | Jun 24, 2025 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 140.0Upgrade to the latest version of Mozilla Thunderbird | Jul 3, 2025 | Jun 24, 2025 |
| Suse | — | Upgrade pipewire-modules-0_3Upgrade mozillafirefox-branding-sleUpgrade pipewire-langUpgrade MozillaThunderbird-translations-otherUpgrade pipewireUpgrade MozillaFirefox-translations-commonUpgrade xdg-desktop-portal-develUpgrade pipewire-modulesUpgrade MozillaFirefox-translations-otherUpgrade pipewire-toolsUpgrade MozillaFirefoxUpgrade xdg-desktop-portalUpgrade MozillaThunderbirdUpgrade MozillaFirefox-develUpgrade pipewire-spa-toolsUpgrade libpipewire-0_3-0Upgrade gstreamer-plugin-pipewireUpgrade MozillaThunderbird-translations-commonUpgrade pipewire-spa-plugins-0_2Upgrade xdg-desktop-portal-langUpgrade mozillafirefox-branding-upstream | Jul 22, 2025 | Jun 24, 2025 |
| Ubuntu | — | Upgrade thunderbird | Jun 26, 2025 | Jun 24, 2025 |
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