Sandbox escape due to incorrect boundary conditions in the Telemetry component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
CVSS Details
- CVSS 3.1 Base Score: 8.6
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade firefox-x11 | Mar 31, 2026 | Mar 26, 2026 |
| Amazon Linux Ami 2 | — | Upgrade firefoxUpgrade thunderbird | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade firefoxUpgrade firefox-debuginfoUpgrade firefox-debugsource | Apr 14, 2026 | Mar 24, 2026 |
| Debian | — | Upgrade firefox-esrUpgrade thunderbird | Mar 30, 2026 | Mar 30, 2026 |
| Freebsd | — | Upgrade firefox-esrUpgrade firefoxUpgrade thunderbird | Mar 27, 2026 | Mar 26, 2026 |
| Mfsa2026 20 | — | Upgrade to Mozilla Firefox version 149.0Upgrade to the latest version of Mozilla Firefox | Mar 27, 2026 | Mar 24, 2026 |
| Mfsa2026 21 | — | Upgrade to Mozilla Firefox ESR version 115.34Upgrade to the latest version of Mozilla Firefox | Mar 27, 2026 | Mar 24, 2026 |
| Mfsa2026 22 | — | Upgrade to Mozilla Firefox ESR version 140.9Upgrade to the latest version of Mozilla Firefox | Mar 27, 2026 | Mar 24, 2026 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 140.9 | Mar 27, 2026 | Mar 24, 2026 |
| Oracle_linux | — | Upgrade firefoxUpgrade firefox-x11Upgrade thunderbird | Mar 30, 2026 | Mar 24, 2026 |
| Redhat_linux | — | Upgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade firefox-x11No solution existsUpgrade firefox-debugsourceUpgrade firefoxUpgrade thunderbirdUpgrade thunderbird-debugsource | Mar 27, 2026 | Mar 24, 2026 |
| Rocky_linux | — | Upgrade firefoxUpgrade thunderbirdUpgrade firefox-x11Upgrade firefox-debugsourceUpgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade thunderbird-debugsource | Apr 8, 2026 | Apr 7, 2026 |
| Suse | — | Upgrade MozillaThunderbird-translations-otherUpgrade MozillaThunderbird-openpgp-librnpUpgrade MozillaFirefoxUpgrade MozillaFirefox-translations-otherUpgrade MozillaThunderbirdUpgrade MozillaFirefox-translations-commonUpgrade MozillaFirefox-develUpgrade mozillafirefox-branding-upstreamUpgrade MozillaThunderbird-translations-common | Mar 30, 2026 | Mar 27, 2026 |
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