A crafted URL containing specific Unicode characters could have hidden the true origin of the page, resulting in a potential spoofing attack. This vulnerability was fixed in Firefox 137, Firefox ESR 128.9, Thunderbird 137, and Thunderbird 128.9.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade firefox-x11Upgrade firefoxUpgrade thunderbird | Apr 7, 2025 | Apr 1, 2025 |
| Amazon Linux Ami 2 | — | Upgrade thunderbirdUpgrade firefoxUpgrade firefox-debuginfoUpgrade thunderbird-debuginfo | Apr 30, 2025 | Apr 1, 2025 |
| Amazon_linux_2023 | — | Upgrade firefox-debuginfoUpgrade firefoxUpgrade firefox-debugsource | Apr 30, 2025 | Apr 1, 2025 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Apr 4, 2025 | Apr 1, 2025 |
| Freebsd | — | Upgrade librewolfUpgrade firefox-esrUpgrade thunderbirdUpgrade firefox | Apr 9, 2025 | Apr 7, 2025 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird.Upgrade www-client/firefox-bin.Upgrade mail-client/thunderbird-bin.Upgrade www-client/firefox.Upgrade dev-lang/spidermonkey. | May 13, 2025 | Apr 1, 2025 |
| Mfsa2025 20 | — | Upgrade to Mozilla Firefox version 137.0Upgrade to the latest version of Mozilla Firefox | Apr 2, 2025 | Apr 1, 2025 |
| Mfsa2025 22 | — | Upgrade to Mozilla Firefox ESR version 128.9Upgrade to the latest version of Mozilla Firefox | Apr 2, 2025 | Apr 1, 2025 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 128.9Upgrade to the latest version of Mozilla Thunderbird | Apr 2, 2025 | Apr 1, 2025 |
| Oracle_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade firefox-x11 | Apr 4, 2025 | Apr 1, 2025 |
| Redhat_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade thunderbird-debugsourceUpgrade firefox-debugsourceUpgrade thunderbird-debuginfoUpgrade firefox-x11Upgrade firefox-debuginfoNo solution exists | Apr 4, 2025 | Apr 1, 2025 |
| Rocky_linux | — | Upgrade firefoxUpgrade thunderbirdUpgrade firefox-debugsourceUpgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade thunderbird-debugsource | Jul 31, 2025 | Jul 29, 2025 |
| Suse | — | Upgrade MozillaFirefox-develUpgrade MozillaFirefoxUpgrade MozillaFirefox-translations-commonUpgrade mozjs128-develUpgrade MozillaThunderbirdUpgrade MozillaThunderbird-translations-otherUpgrade libmozjs-128-0Upgrade mozjs128Upgrade MozillaFirefox-translations-otherUpgrade MozillaThunderbird-translations-commonUpgrade mozillafirefox-branding-upstream | Apr 3, 2025 | Apr 1, 2025 |
| Ubuntu | — | Upgrade thunderbird | Jun 26, 2025 | Apr 1, 2025 |
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