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 the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 140.0 | 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-spa-toolsUpgrade pipewire-spa-plugins-0_2Upgrade MozillaThunderbird-translations-commonUpgrade xdg-desktop-portal-langUpgrade libpipewire-0_3-0Upgrade gstreamer-plugin-pipewireUpgrade mozillafirefox-branding-upstreamUpgrade pipewire-modulesUpgrade pipewireUpgrade pipewire-toolsUpgrade MozillaThunderbird-translations-otherUpgrade mozillafirefox-branding-sleUpgrade MozillaFirefox-develUpgrade MozillaThunderbirdUpgrade pipewire-langUpgrade xdg-desktop-portalUpgrade MozillaFirefoxUpgrade MozillaFirefox-translations-otherUpgrade xdg-desktop-portal-develUpgrade pipewire-modules-0_3Upgrade MozillaFirefox-translations-common | Jul 22, 2025 | Jun 24, 2025 |
| Ubuntu | — | Upgrade thunderbird | Jun 26, 2025 | Jun 24, 2025 |
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