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An attacker was able to perform an out-of-bounds read or write on a JavaScript `Promise` object. This vulnerability was fixed in Firefox 138.0.4, Firefox ESR 128.10.1, Firefox ESR 115.23.1, Thunderbird 128.10.2, and Thunderbird 138.0.2.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade firefox-x11Upgrade firefoxUpgrade thunderbird | May 22, 2025 | May 17, 2025 |
| Amazon Linux Ami 2 | — | Upgrade firefox-debuginfoUpgrade firefoxUpgrade thunderbirdUpgrade thunderbird-debuginfo | Jun 12, 2025 | May 17, 2025 |
| Amazon_linux_2023 | — | Upgrade firefoxUpgrade firefox-debuginfoUpgrade firefox-debugsource | Jun 11, 2025 | May 17, 2025 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | May 20, 2025 | May 17, 2025 |
| Freebsd | — | Upgrade firefox-esrUpgrade firefox | May 20, 2025 | May 19, 2025 |
| Mfsa2025 36 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 138.0.4 | May 20, 2025 | May 17, 2025 |
| Mfsa2025 37 | — | Upgrade to Mozilla Firefox ESR version 128.10.1Upgrade to the latest version of Mozilla Firefox | May 20, 2025 | May 17, 2025 |
| Mfsa2025 38 | — | Upgrade to Mozilla Firefox ESR version 115.23.1Upgrade to the latest version of Mozilla Firefox | May 20, 2025 | May 17, 2025 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 138.0.2 | May 26, 2025 | May 17, 2025 |
| Oracle_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade firefox-x11 | May 26, 2025 | May 17, 2025 |
| Redhat_linux | — | Upgrade firefox-x11No solution existsUpgrade firefox-debugsourceUpgrade firefox-debuginfoUpgrade firefoxUpgrade thunderbird-debugsourceUpgrade thunderbird-debuginfoUpgrade thunderbird | May 22, 2025 | May 17, 2025 |
| Rocky_linux | — | Upgrade thunderbird-debugsourceUpgrade firefoxUpgrade thunderbird-debuginfoUpgrade firefox-debugsourceUpgrade firefox-debuginfoUpgrade thunderbird | Jul 31, 2025 | Jul 29, 2025 |
| Suse | — | Upgrade MozillaThunderbird-translations-otherUpgrade mozillafirefox-branding-upstreamUpgrade MozillaFirefox-develUpgrade MozillaThunderbirdUpgrade MozillaFirefox-translations-commonUpgrade MozillaThunderbird-translations-commonUpgrade MozillaFirefox-translations-otherUpgrade MozillaFirefox | May 26, 2025 | May 17, 2025 |
| Ubuntu | — | Upgrade thunderbird | Jun 26, 2025 | May 17, 2025 |
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