Sandbox escape due to incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
CVSS Details
- CVSS 3.1 Base Score: 9.6
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade thunderbirdUpgrade firefox-x11Upgrade firefox | Jun 23, 2026 | Jun 22, 2026 |
| Amazon Linux Ami 2 | — | Upgrade firefoxUpgrade thunderbird | Jul 8, 2026 | Jul 8, 2026 |
| Amazon_linux_2023 | — | Upgrade firefox-debuginfoUpgrade firefox-debugsourceUpgrade firefox | Jul 8, 2026 | Jun 16, 2026 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Jun 21, 2026 | Jun 21, 2026 |
| Mfsa2026 57 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 152.0 | Jun 16, 2026 | Jun 16, 2026 |
| Mfsa2026 58 | — | Upgrade to Mozilla Firefox ESR version 140.12Upgrade to the latest version of Mozilla Firefox | Jun 16, 2026 | Jun 16, 2026 |
| Mfsa2026 59 | — | Upgrade to Mozilla Firefox ESR version 115.37Upgrade to the latest version of Mozilla Firefox | Jun 16, 2026 | Jun 16, 2026 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 140.12Upgrade to the latest version of Mozilla Thunderbird | Jun 21, 2026 | Jun 16, 2026 |
| Redhat_linux | — | Upgrade firefox-x11No solution existsUpgrade firefox-debugsourceUpgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade thunderbirdUpgrade firefoxUpgrade thunderbird-debugsource | Jun 23, 2026 | Jun 16, 2026 |
| Rocky_linux | — | Upgrade firefoxUpgrade thunderbirdUpgrade firefox-x11Upgrade thunderbird-debugsourceUpgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade firefox-debugsource | Jun 29, 2026 | Jun 26, 2026 |
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