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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 firefoxUpgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade thunderbird | Apr 30, 2025 | Apr 1, 2025 |
| Amazon_linux_2023 | — | Upgrade firefoxUpgrade firefox-debuginfoUpgrade firefox-debugsource | Apr 30, 2025 | Apr 1, 2025 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Apr 4, 2025 | Apr 1, 2025 |
| Freebsd | — | Upgrade firefox-esrUpgrade firefox | Apr 9, 2025 | Apr 7, 2025 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird.Upgrade www-client/firefox-bin.Upgrade mail-client/thunderbird-bin.Upgrade dev-lang/spidermonkey.Upgrade www-client/firefox. | 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 firefox-x11Upgrade firefoxUpgrade thunderbird | Apr 4, 2025 | Apr 1, 2025 |
| Redhat_linux | — | No solution existsUpgrade firefox-x11Upgrade firefox-debugsourceUpgrade thunderbird-debugsourceUpgrade thunderbird-debuginfoUpgrade thunderbirdUpgrade firefox-debuginfoUpgrade firefox | Apr 4, 2025 | Apr 1, 2025 |
| Rocky_linux | — | Upgrade thunderbird-debugsourceUpgrade firefoxUpgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade thunderbirdUpgrade firefox-debugsource | Jul 31, 2025 | Jul 29, 2025 |
| Suse | — | Upgrade libmozjs-128-0Upgrade MozillaFirefox-develUpgrade MozillaThunderbirdUpgrade mozillafirefox-branding-upstreamUpgrade MozillaThunderbird-translations-otherUpgrade mozjs128-develUpgrade MozillaFirefox-translations-otherUpgrade MozillaFirefoxUpgrade MozillaThunderbird-translations-commonUpgrade MozillaFirefox-translations-commonUpgrade mozjs128 | Apr 3, 2025 | Apr 1, 2025 |
| Ubuntu | — | Upgrade thunderbird | Jun 26, 2025 | Apr 1, 2025 |
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