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Memory safety bugs present in Firefox 137, Thunderbird 137, Firefox ESR 128.9, and Thunderbird 128.9. 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 138, Firefox ESR 128.10, Thunderbird 138, and Thunderbird 128.10.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade firefox-x11Upgrade firefoxUpgrade thunderbird | May 13, 2025 | Apr 29, 2025 |
| Amazon Linux Ami 2 | — | Upgrade firefoxUpgrade thunderbirdUpgrade firefox-debuginfoUpgrade thunderbird-debuginfo | May 30, 2025 | Apr 29, 2025 |
| Amazon_linux_2023 | — | Upgrade firefox-debugsourceUpgrade firefox-debuginfoUpgrade firefox | Jun 3, 2025 | Apr 29, 2025 |
| Debian | — | Upgrade firefox-esrUpgrade thunderbird | May 2, 2025 | Apr 29, 2025 |
| Freebsd | — | Upgrade firefox-esrUpgrade thunderbirdUpgrade firefox | May 15, 2025 | May 14, 2025 |
| Mfsa2025 28 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 138.0 | Apr 30, 2025 | Apr 29, 2025 |
| Mfsa2025 29 | — | Upgrade to Mozilla Firefox ESR version 128.10Upgrade to the latest version of Mozilla Firefox | Apr 30, 2025 | Apr 29, 2025 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 128.10Upgrade to the latest version of Mozilla Thunderbird | Apr 30, 2025 | Apr 29, 2025 |
| Oracle_linux | — | Upgrade firefoxUpgrade thunderbirdUpgrade firefox-x11 | May 6, 2025 | Apr 29, 2025 |
| Redhat_linux | — | Upgrade firefox-debugsourceUpgrade firefox-x11Upgrade thunderbirdUpgrade firefoxNo solution existsUpgrade thunderbird-debuginfoUpgrade thunderbird-debugsourceUpgrade firefox-debuginfo | May 6, 2025 | Apr 29, 2025 |
| Rocky_linux | — | Upgrade firefox-debuginfoUpgrade firefoxUpgrade firefox-debugsourceUpgrade thunderbirdUpgrade thunderbird-debuginfoUpgrade thunderbird-debugsourceUpgrade firefox-x11 | Jul 31, 2025 | Jul 29, 2025 |
| Suse | — | Upgrade MozillaFirefox-develUpgrade MozillaFirefox-translations-commonUpgrade MozillaThunderbird-translations-otherUpgrade mozillafirefox-branding-upstreamUpgrade MozillaThunderbirdUpgrade MozillaFirefox-translations-otherUpgrade MozillaThunderbird-translations-commonUpgrade MozillaFirefox | May 5, 2025 | Apr 29, 2025 |
| Ubuntu | — | Upgrade thunderbird | Jun 26, 2025 | Apr 29, 2025 |
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