A latent vulnerability exists in the Prio library where data may be read from uninitialized memory for some functions, leading to potential memory corruption. This vulnerability affects Firefox < 66.
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 |
|---|---|---|---|---|
| Arch Linux | arch-linux-upgrade-latest | Jul 11, 2025 | Apr 26, 2019 | |
| Freebsd | freebsd-upgrade-package-firefoxfreebsd-upgrade-package-waterfoxfreebsd-upgrade-package-seamonkeyfreebsd-upgrade-package-linux-seamonkeyfreebsd-upgrade-package-firefox-esrfreebsd-upgrade-package-linux-firefoxfreebsd-upgrade-package-libxulfreebsd-upgrade-package-thunderbirdfreebsd-upgrade-package-linux-thunderbird | Mar 20, 2019 | Mar 19, 2019 | |
| Mfsa2019 07 | mozilla-firefox-upgrade-66_0 | Mar 20, 2019 | Mar 19, 2019 | |
| Ubuntu | ubuntu-upgrade-firefox | Apr 1, 2019 | Mar 19, 2019 |
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