A use-after-free in FontFaceSet resulted in a potentially exploitable crash. This vulnerability was fixed in Firefox 140, Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12.
CVSS Details
- CVSS 3.1 Base Score: 9.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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 2, 2025 | Jun 24, 2025 |
| Amazon Linux Ami 2 | — | Upgrade firefox-debuginfoUpgrade firefox | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade firefox-debuginfoUpgrade firefox-debugsourceUpgrade firefox | Jul 11, 2025 | Jun 24, 2025 |
| Debian | — | Upgrade firefox-esrUpgrade thunderbird | Jun 26, 2025 | Jun 24, 2025 |
| Freebsd | — | Upgrade thunderbirdUpgrade firefoxUpgrade firefox-esr | Jul 4, 2025 | Jul 3, 2025 |
| Mfsa2025 51 | — | Upgrade to Mozilla Firefox version 140.0 | Jun 25, 2025 | Jun 24, 2025 |
| Mfsa2025 52 | — | Upgrade to Mozilla Firefox ESR version 115.25 | Jun 25, 2025 | Jun 24, 2025 |
| Mfsa2025 53 | — | Upgrade to Mozilla Firefox ESR version 128.12 | Jun 25, 2025 | Jun 24, 2025 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 128.12 | Jul 3, 2025 | Jun 24, 2025 |
| Oracle_linux | — | Upgrade firefox-x11Upgrade firefox | Jul 3, 2025 | Jun 24, 2025 |
| Redhat_linux | — | Upgrade thunderbird-debugsourceUpgrade firefoxUpgrade firefox-debugsourceNo solution existsUpgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade firefox-x11Upgrade thunderbird | Jul 2, 2025 | Jun 24, 2025 |
| Rocky_linux | — | Upgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade firefox-debugsourceUpgrade thunderbirdUpgrade firefoxUpgrade firefox-x11Upgrade thunderbird-debugsource | Feb 5, 2026 | Jul 29, 2025 |
| Suse | — | Upgrade pipewire-toolsUpgrade mozjs128Upgrade libpipewire-0_3-0Upgrade pipewire-modules-0_3Upgrade mozillafirefox-branding-upstreamUpgrade mozillafirefox-branding-sleUpgrade pipewire-spa-toolsUpgrade mozillathunderbird-translations-otherUpgrade pipewire-modulesUpgrade xdg-desktop-portal-langUpgrade mozillafirefoxUpgrade xdg-desktop-portal-develUpgrade pipewire-langUpgrade libmozjs-128-0Upgrade xdg-desktop-portalUpgrade mozillafirefox-develUpgrade mozjs128-develUpgrade mozillathunderbird-translations-commonUpgrade pipewireUpgrade gstreamer-plugin-pipewireUpgrade mozillathunderbirdUpgrade mozillafirefox-translations-commonUpgrade mozillafirefox-translations-otherUpgrade pipewire-spa-plugins-0_2 | Jun 27, 2025 | Jun 24, 2025 |
| Ubuntu | — | Upgrade thunderbird | Jun 26, 2025 | Jun 24, 2025 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub