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 thunderbirdUpgrade firefox | May 13, 2025 | Apr 29, 2025 |
| Amazon Linux Ami 2 | — | Upgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade thunderbirdUpgrade firefox | May 30, 2025 | Apr 29, 2025 |
| Amazon_linux_2023 | — | Upgrade firefox-debuginfoUpgrade firefox-debugsourceUpgrade firefox | Jun 3, 2025 | Apr 29, 2025 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | May 2, 2025 | Apr 29, 2025 |
| Freebsd | — | Upgrade firefoxUpgrade thunderbirdUpgrade firefox-esr | May 15, 2025 | May 14, 2025 |
| Mfsa2025 28 | — | Upgrade to Mozilla Firefox version 138.0Upgrade to the latest version of Mozilla Firefox | Apr 30, 2025 | Apr 29, 2025 |
| Mfsa2025 29 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 128.10 | Apr 30, 2025 | Apr 29, 2025 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 128.10 | Apr 30, 2025 | Apr 29, 2025 |
| Oracle_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade firefox-x11 | May 6, 2025 | Apr 29, 2025 |
| Redhat_linux | — | Upgrade firefox-debugsourceNo solution existsUpgrade firefox-x11Upgrade thunderbirdUpgrade firefoxUpgrade thunderbird-debuginfoUpgrade thunderbird-debugsourceUpgrade firefox-debuginfo | May 6, 2025 | Apr 29, 2025 |
| Rocky_linux | — | Upgrade firefox-debugsourceUpgrade thunderbirdUpgrade thunderbird-debugsourceUpgrade firefoxUpgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade firefox-x11 | Jul 31, 2025 | Jul 29, 2025 |
| Suse | — | Upgrade MozillaFirefoxUpgrade MozillaThunderbird-translations-commonUpgrade MozillaThunderbirdUpgrade mozillafirefox-branding-upstreamUpgrade MozillaFirefox-develUpgrade MozillaFirefox-translations-commonUpgrade MozillaThunderbird-translations-otherUpgrade MozillaFirefox-translations-other | May 5, 2025 | Apr 29, 2025 |
| Ubuntu | — | Upgrade thunderbird | Jun 26, 2025 | Apr 29, 2025 |
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