On arm64, a WASM `br_table` instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorrect computation of the branch address. This vulnerability was fixed in Firefox 141, Firefox ESR 115.26, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade firefoxUpgrade thunderbirdUpgrade firefox-x11 | 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 firefoxUpgrade firefox-debugsourceUpgrade firefox-debuginfo | Aug 19, 2025 | Jul 22, 2025 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Jul 24, 2025 | Jul 22, 2025 |
| Freebsd | — | Upgrade thunderbird-esrUpgrade firefoxUpgrade thunderbirdUpgrade firefox-esr | Jul 25, 2025 | Jul 24, 2025 |
| Mfsa2025 56 | — | Upgrade to Mozilla Firefox version 141.0 | Jul 23, 2025 | Jul 22, 2025 |
| Mfsa2025 57 | — | Upgrade to Mozilla Firefox ESR version 115.26 | 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 firefoxUpgrade thunderbirdUpgrade firefox-x11 | Jul 28, 2025 | Jul 22, 2025 |
| Redhat_linux | — | Upgrade firefox-debuginfoUpgrade thunderbird-debugsourceUpgrade firefox-x11Upgrade thunderbirdUpgrade firefox-debugsourceUpgrade thunderbird-debuginfoUpgrade firefoxNo solution exists | Jul 25, 2025 | Jul 22, 2025 |
| Rocky_linux | — | Upgrade firefox-debugsourceUpgrade firefox-x11Upgrade thunderbirdUpgrade thunderbird-debugsourceUpgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade firefox | Feb 5, 2026 | Sep 8, 2025 |
| Suse | — | Upgrade mozillafirefox-translations-commonUpgrade pipewireUpgrade mozillathunderbird-translations-commonUpgrade pipewire-langUpgrade mozillathunderbird-translations-otherUpgrade mozillafirefox-develUpgrade pipewire-spa-toolsUpgrade pipewire-spa-plugins-0_2Upgrade mozillafirefox-translations-otherUpgrade xdg-desktop-portal-develUpgrade xdg-desktop-portal-langUpgrade gstreamer-plugin-pipewireUpgrade mozillathunderbirdUpgrade libpipewire-0_3-0Upgrade pipewire-toolsUpgrade xdg-desktop-portalUpgrade mozillafirefox-branding-upstreamUpgrade mozillafirefox-branding-sleUpgrade pipewire-modules-0_3Upgrade pipewire-modulesUpgrade mozillafirefox | Aug 14, 2025 | Jul 26, 2025 |
| Ubuntu | — | Upgrade thunderbird | Jul 24, 2025 | Jul 22, 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