Mozilla developers and community members reported memory safety bugs present in Firefox 66. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 67.
CVSS Details
- CVSS 3.1 Base Score: 9.8
- CVSS 3.0 Vector: (CVSS:3.0/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 | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jul 23, 2019 |
| Freebsd | — | Upgrade linux-firefoxUpgrade firefox-esrUpgrade waterfoxUpgrade linux-seamonkeyUpgrade thunderbirdUpgrade firefoxUpgrade seamonkeyUpgrade libxulUpgrade linux-thunderbird | May 23, 2019 | May 22, 2019 |
| Mfsa2019 13 | — | Upgrade to Mozilla Firefox version 67.0 | May 22, 2019 | May 21, 2019 |
| Ubuntu | — | Upgrade firefox | May 22, 2019 | May 21, 2019 |
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