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 firefoxUpgrade firefox-x11Upgrade thunderbird | Mar 31, 2026 | Mar 26, 2026 |
| Amazon Linux Ami 2 | — | Upgrade firefoxUpgrade thunderbird | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade firefox-debuginfoUpgrade firefoxUpgrade firefox-debugsource | Apr 14, 2026 | Mar 24, 2026 |
| Debian | — | Upgrade firefox-esrUpgrade thunderbird | Mar 30, 2026 | Mar 30, 2026 |
| Freebsd | — | Upgrade firefoxUpgrade firefox-esrUpgrade thunderbird | Mar 27, 2026 | Mar 26, 2026 |
| Mfsa2026 20 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 149.0 | Mar 27, 2026 | Mar 24, 2026 |
| Mfsa2026 21 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 115.34 | Mar 27, 2026 | Mar 24, 2026 |
| Mfsa2026 22 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 140.9 | Mar 27, 2026 | Mar 24, 2026 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 140.9Upgrade to the latest version of Mozilla Thunderbird | Mar 27, 2026 | Mar 24, 2026 |
| Oracle_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade firefox-x11 | Mar 30, 2026 | Mar 24, 2026 |
| Redhat_linux | — | Upgrade thunderbird-debugsourceUpgrade firefoxUpgrade thunderbirdUpgrade firefox-debuginfoUpgrade firefox-debugsourceUpgrade thunderbird-debuginfoNo solution existsUpgrade firefox-x11 | Mar 27, 2026 | Mar 24, 2026 |
| Rocky_linux | — | Upgrade firefoxUpgrade thunderbirdUpgrade firefox-x11Upgrade thunderbird-debuginfoUpgrade thunderbird-debugsourceUpgrade firefox-debuginfoUpgrade firefox-debugsource | Apr 8, 2026 | Apr 7, 2026 |
| Suse | — | Upgrade mozillafirefox-branding-upstreamUpgrade MozillaThunderbird-translations-commonUpgrade MozillaFirefox-translations-otherUpgrade MozillaThunderbird-translations-otherUpgrade MozillaThunderbird-openpgp-librnpUpgrade MozillaFirefox-translations-commonUpgrade MozillaFirefoxUpgrade MozillaFirefox-develUpgrade MozillaThunderbird | Mar 30, 2026 | Mar 27, 2026 |
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