Memory safety bugs present in Firefox 136, Thunderbird 136, Firefox ESR 128.8, and Thunderbird 128.8. 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 137, Firefox ESR 128.9, Thunderbird 137, and Thunderbird 128.9.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade thunderbirdUpgrade firefox-x11Upgrade firefox | Apr 7, 2025 | Apr 1, 2025 |
| Amazon Linux Ami 2 | — | Upgrade thunderbird-debuginfoUpgrade thunderbirdUpgrade firefoxUpgrade firefox-debuginfo | Apr 30, 2025 | Apr 1, 2025 |
| Amazon_linux_2023 | — | Upgrade firefox-debugsourceUpgrade firefox-debuginfoUpgrade firefox | Apr 30, 2025 | Apr 1, 2025 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Apr 4, 2025 | Apr 1, 2025 |
| Freebsd | — | Upgrade firefoxUpgrade firefox-esr | Apr 9, 2025 | Apr 7, 2025 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird-bin.Upgrade www-client/firefox.Upgrade dev-lang/spidermonkey.Upgrade mail-client/thunderbird.Upgrade www-client/firefox-bin. | 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 Mozilla Thunderbird version 128.9Upgrade to the latest version of Mozilla Thunderbird | Apr 2, 2025 | Apr 1, 2025 |
| Oracle_linux | — | Upgrade firefox-x11Upgrade firefoxUpgrade thunderbird | Apr 4, 2025 | Apr 1, 2025 |
| Redhat_linux | — | Upgrade thunderbirdUpgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade firefox-debugsourceUpgrade firefoxUpgrade thunderbird-debugsourceNo solution existsUpgrade firefox-x11 | Apr 4, 2025 | Apr 1, 2025 |
| Rocky_linux | — | Upgrade firefox-debugsourceUpgrade firefoxUpgrade thunderbirdUpgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade thunderbird-debugsource | Jul 31, 2025 | Jul 29, 2025 |
| Suse | — | Upgrade MozillaThunderbird-translations-otherUpgrade MozillaFirefox-develUpgrade mozjs128-develUpgrade MozillaFirefox-translations-otherUpgrade libmozjs-128-0Upgrade mozillafirefox-branding-upstreamUpgrade MozillaThunderbirdUpgrade MozillaFirefoxUpgrade MozillaThunderbird-translations-commonUpgrade mozjs128Upgrade MozillaFirefox-translations-common | Apr 3, 2025 | Apr 1, 2025 |
| Ubuntu | — | Upgrade thunderbird | Jun 26, 2025 | Apr 1, 2025 |
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