Mozilla developers and community members reported memory safety bugs present in Firefox 62 and Firefox ESR 60.2. 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 < 63, Firefox ESR < 60.3, and Thunderbird < 60.3.
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 |
|---|---|---|---|---|
| Alpine Linux | — | alpine-linux-upgrade-firefox-esr | Apr 16, 2019 | Feb 28, 2019 |
| Amazon Linux Ami 2 | amazon-linux-ami-2-upgrade-thunderbirdamazon-linux-ami-2-upgrade-thunderbird-debuginfo | Apr 27, 2020 | Feb 28, 2019 | |
| Arch Linux | View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗ | arch-linux-upgrade-latest | Jul 11, 2025 | Feb 28, 2019 |
| Centos_linux | — | centos-upgrade-firefoxcentos-upgrade-firefox-debuginfocentos-upgrade-thunderbirdcentos-upgrade-thunderbird-debuginfo | Oct 27, 2018 | Oct 23, 2018 |
| Debian | debian-upgrade-firefox-esrdebian-upgrade-thunderbird | Oct 25, 2018 | Oct 23, 2018 | |
| 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 | Oct 24, 2018 | Oct 23, 2018 | |
| Gentoo Linux | gentoo-linux-upgrade-mail-client-thunderbirdgentoo-linux-upgrade-mail-client-thunderbird-bingentoo-linux-upgrade-www-client-firefoxgentoo-linux-upgrade-www-client-firefox-bin | Nov 9, 2018 | Nov 9, 2018 | |
| Mfsa2018 26 | mozilla-firefox-upgrade-63_0 | Oct 24, 2018 | Oct 23, 2018 | |
| Mfsa2018 27 | mozilla-firefox-esr-upgrade-60_3 | Oct 24, 2018 | Oct 23, 2018 | |
| Mozilla Thunderbird | mozilla-thunderbird-upgrade-60_3 | Nov 1, 2018 | Oct 31, 2018 | |
| Oracle Solaris | oracle-solaris-11-4-upgrade-mail-thunderbird-60-6-1-11-4-9-0-1-2-0oracle-solaris-11-4-upgrade-mail-thunderbird-plugin-thunderbird-lightning-60-6-1-11-4-9-0-1-2-0oracle-solaris-11-4-upgrade-web-browser-firefox-60-5-0-11-4-6-0-1-4-0oracle-solaris-11-4-upgrade-web-data-firefox-bookmarks-60-5-0-11-4-6-0-1-4-0 | Feb 20, 2019 | Feb 20, 2019 | |
| Oracle_linux | — | oracle-linux-upgrade-firefoxoracle-linux-upgrade-thunderbird | Nov 2, 2018 | Oct 23, 2018 |
| Redhat_linux | — | redhat-upgrade-firefoxredhat-upgrade-firefox-debuginforedhat-upgrade-thunderbirdredhat-upgrade-thunderbird-debuginfo | Oct 25, 2018 | Oct 24, 2018 |
| Suse | — | suse-upgrade-mozillafirefoxsuse-upgrade-mozillafirefox-branding-upstreamsuse-upgrade-mozillafirefox-buildsymbolssuse-upgrade-mozillafirefox-develsuse-upgrade-mozillafirefox-translations-commonsuse-upgrade-mozillafirefox-translations-othersuse-upgrade-mozillathunderbirdsuse-upgrade-mozillathunderbird-buildsymbolssuse-upgrade-mozillathunderbird-translations-commonsuse-upgrade-mozillathunderbird-translations-other | Oct 26, 2018 | Oct 23, 2018 |
| Ubuntu | ubuntu-upgrade-firefoxubuntu-upgrade-thunderbird | Nov 7, 2018 | Oct 23, 2018 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub