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Leaking of file descriptors from the fork server to web content processes could allow for privilege escalation attacks. This vulnerability was fixed in Firefox 137 and Thunderbird 137.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Freebsd | — | Upgrade firefoxUpgrade thunderbirdUpgrade librewolf | Apr 9, 2025 | Apr 7, 2025 |
| Gentoo Linux | — | Upgrade dev-lang/spidermonkey.Upgrade www-client/firefox.Upgrade www-client/firefox-bin.Upgrade mail-client/thunderbird.Upgrade mail-client/thunderbird-bin. | May 13, 2025 | Apr 1, 2025 |
| Mfsa2025 20 | — | Upgrade to Mozilla Firefox version 137.0Upgrade to the latest version of Mozilla Firefox | Apr 2, 2025 | Apr 1, 2025 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 137.0 | Apr 2, 2025 | Apr 1, 2025 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Apr 1, 2025 |
| Ubuntu | — | Upgrade thunderbird | Jun 26, 2025 | Apr 1, 2025 |
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