Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade firefoxUpgrade thunderbirdUpgrade firefox-x11 | Jun 23, 2026 | Jun 22, 2026 |
| Amazon Linux Ami 2 | — | Upgrade thunderbirdUpgrade firefox | Jul 8, 2026 | Jul 8, 2026 |
| Amazon_linux_2023 | — | Upgrade firefoxUpgrade firefox-debugsourceUpgrade firefox-debuginfo | Jul 8, 2026 | Jun 16, 2026 |
| Debian | — | Upgrade firefox-esrUpgrade thunderbird | 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 |
| 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 thunderbirdUpgrade firefoxUpgrade thunderbird-debuginfoUpgrade firefox-x11Upgrade thunderbird-debugsourceNo solution existsUpgrade firefox-debugsourceUpgrade firefox-debuginfo | Jun 23, 2026 | Jun 16, 2026 |
| Rocky_linux | — | Upgrade thunderbirdUpgrade thunderbird-debuginfoUpgrade firefox-debugsourceUpgrade firefox-x11Upgrade thunderbird-debugsourceUpgrade firefox-debuginfoUpgrade firefox | Jun 29, 2026 | Jun 26, 2026 |
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