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 thunderbirdUpgrade firefox | Apr 7, 2025 | Apr 1, 2025 |
| Amazon Linux Ami 2 | — | Upgrade thunderbird-debuginfoUpgrade firefoxUpgrade thunderbirdUpgrade firefox-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 www-client/firefox.Upgrade dev-lang/spidermonkey.Upgrade www-client/firefox-bin.Upgrade mail-client/thunderbird-bin.Upgrade mail-client/thunderbird. | 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 the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 128.9 | Apr 2, 2025 | Apr 1, 2025 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 128.9 | Apr 2, 2025 | Apr 1, 2025 |
| Oracle_linux | — | Upgrade firefox-x11Upgrade firefoxUpgrade thunderbird | Apr 4, 2025 | Apr 1, 2025 |
| Redhat_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade firefox-x11Upgrade firefox-debugsourceUpgrade thunderbird-debuginfoUpgrade firefox-debuginfoNo solution existsUpgrade thunderbird-debugsource | Apr 4, 2025 | Apr 1, 2025 |
| Rocky_linux | — | Upgrade firefox-debuginfoUpgrade firefox-debugsourceUpgrade thunderbird-debuginfoUpgrade thunderbird-debugsourceUpgrade firefoxUpgrade thunderbird | Jul 31, 2025 | Jul 29, 2025 |
| Suse | — | Upgrade MozillaFirefoxUpgrade libmozjs-128-0Upgrade MozillaFirefox-develUpgrade mozjs128-develUpgrade MozillaThunderbird-translations-otherUpgrade MozillaThunderbirdUpgrade MozillaFirefox-translations-commonUpgrade mozillafirefox-branding-upstreamUpgrade mozjs128Upgrade MozillaFirefox-translations-otherUpgrade MozillaThunderbird-translations-common | Apr 3, 2025 | Apr 1, 2025 |
| Ubuntu | — | Upgrade thunderbird | Jun 26, 2025 | Apr 1, 2025 |
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