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Use-after-free in the DOM: Networking component. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade firefoxUpgrade firefox-x11 | May 27, 2026 | May 26, 2026 |
| Amazon Linux Ami 2 | — | Upgrade firefoxUpgrade thunderbird | Jun 8, 2026 | Jun 8, 2026 |
| Amazon_linux_2023 | — | Upgrade firefoxUpgrade firefox-debuginfoUpgrade firefox-debugsource | May 28, 2026 | May 7, 2026 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | May 10, 2026 | May 10, 2026 |
| Freebsd | — | Upgrade firefoxUpgrade firefox-esr | May 13, 2026 | May 8, 2026 |
| Mfsa2026 40 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 150.0.2 | May 7, 2026 | May 7, 2026 |
| Mfsa2026 41 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 140.10.2 | May 7, 2026 | May 7, 2026 |
| Mfsa2026 42 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 115.35.2 | May 7, 2026 | May 7, 2026 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 140.10.2 | May 10, 2026 | May 8, 2026 |
| Oracle_linux | — | Upgrade firefoxUpgrade firefox-x11 | May 28, 2026 | May 7, 2026 |
| Redhat_linux | — | Upgrade firefox-debugsourceUpgrade firefox-debuginfoNo solution existsUpgrade firefox-x11Upgrade thunderbird-debuginfoUpgrade thunderbird-debugsourceUpgrade thunderbirdUpgrade firefox | May 20, 2026 | May 7, 2026 |
| Rocky_linux | — | Upgrade firefoxUpgrade firefox-debuginfoUpgrade firefox-debugsource | Jun 1, 2026 | May 29, 2026 |
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