Mozilla developers reported memory safety bugs present in Firefox 89. 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 < 90.
CVSS Details
- CVSS 3.1 Base Score: 8.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | alpine-linux-upgrade-firefoxalpine-linux-upgrade-librewolf | Aug 22, 2024 | Aug 5, 2021 | |
| Arch Linux | arch-linux-upgrade-latest | Jul 11, 2025 | Aug 5, 2021 | |
| Gentoo Linux | gentoo-linux-upgrade-www-client-firefoxgentoo-linux-upgrade-www-client-firefox-bin | Feb 22, 2022 | Aug 5, 2021 | |
| Mfsa2021 28 | mozilla-firefox-upgrade-90_0 | Jul 14, 2021 | Jul 13, 2021 | |
| Ubuntu | ubuntu-upgrade-firefox | Jul 17, 2021 | Jul 16, 2021 |
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