Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
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 |
|---|---|---|---|---|
| Alma_linux | — | Upgrade firefoxUpgrade firefox-x11Upgrade thunderbird | Jan 20, 2026 | Jan 15, 2026 |
| Amazon Linux Ami 2 | — | Upgrade firefoxUpgrade thunderbird | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade firefox-debugsourceUpgrade firefox-debuginfoUpgrade firefox | Feb 20, 2026 | Jan 13, 2026 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Jan 19, 2026 | Jan 19, 2026 |
| Freebsd | — | Upgrade firefox-esrUpgrade firefoxUpgrade thunderbird | Jan 27, 2026 | Jan 15, 2026 |
| Mfsa2026 01 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 147.0 | Jan 14, 2026 | Jan 13, 2026 |
| Mfsa2026 02 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 115.32 | Jan 14, 2026 | Jan 13, 2026 |
| Mfsa2026 03 | — | Upgrade to Mozilla Firefox ESR version 140.7Upgrade to the latest version of Mozilla Firefox | Jan 14, 2026 | Jan 13, 2026 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 140.7Upgrade to the latest version of Mozilla Thunderbird | Jan 16, 2026 | Jan 13, 2026 |
| Oracle_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade firefox-x11 | Jan 19, 2026 | Jan 13, 2026 |
| Redhat_linux | — | Upgrade firefoxUpgrade firefox-x11Upgrade firefox-debuginfoUpgrade thunderbirdUpgrade thunderbird-debugsourceUpgrade thunderbird-debuginfoUpgrade firefox-debugsourceNo solution exists | Jan 16, 2026 | Jan 13, 2026 |
| Rocky_linux | — | Upgrade firefox-x11Upgrade firefoxUpgrade thunderbirdUpgrade thunderbird-debugsourceUpgrade firefox-debugsourceUpgrade thunderbird-debuginfoUpgrade firefox-debuginfo | Jan 19, 2026 | Jan 16, 2026 |
| Suse | — | Upgrade mozillafirefox-branding-upstreamUpgrade MozillaThunderbird-translations-commonUpgrade MozillaFirefox-translations-commonUpgrade MozillaFirefox-develUpgrade MozillaThunderbirdUpgrade MozillaThunderbird-openpgp-librnpUpgrade MozillaFirefoxUpgrade MozillaFirefox-translations-otherUpgrade MozillaThunderbird-translations-other | Jan 15, 2026 | Jan 15, 2026 |
| Ubuntu | — | Upgrade thunderbird | Feb 4, 2026 | Feb 2, 2026 |
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