Mozilla developers and community members reported memory safety bugs present in Firefox 75. 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 < 76.
CVSS Details
- CVSS 3.1 Base Score: 9.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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 | May 26, 2020 | |
| Arch Linux | arch-linux-upgrade-latest | Jul 11, 2025 | May 26, 2020 | |
| Gentoo Linux | gentoo-linux-upgrade-www-client-firefoxgentoo-linux-upgrade-www-client-firefox-bin | Jun 15, 2020 | May 26, 2020 | |
| Mfsa2020 16 | mozilla-firefox-upgrade-76_0 | May 6, 2020 | May 5, 2020 | |
| Redhat_linux | no-fix-redhat-rpm-package | Jul 9, 2025 | May 26, 2020 | |
| Ubuntu | ubuntu-upgrade-firefox | May 8, 2020 | May 7, 2020 |
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