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Mozilla developers reported memory safety bugs present in Firefox 88. 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 affects Firefox < 89.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade firefoxUpgrade librewolf | Aug 22, 2024 | Jun 24, 2021 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jun 24, 2021 |
| Gentoo Linux | — | Upgrade www-client/firefox.Upgrade www-client/firefox-bin. | Jul 8, 2021 | Jun 24, 2021 |
| Mfsa2021 23 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 89.0 | Jun 2, 2021 | Jun 1, 2021 |
| Ubuntu | — | Upgrade firefox | Jun 3, 2021 | Jun 2, 2021 |
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