Use-after-free in the Widget: Cocoa component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade thunderbirdUpgrade firefox-x11Upgrade firefox | Apr 29, 2026 | Apr 27, 2026 |
| Freebsd | — | Upgrade firefox-esrUpgrade firefoxUpgrade thunderbird | Apr 30, 2026 | Apr 28, 2026 |
| Mfsa2026 30 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 150.0 | Apr 23, 2026 | Apr 21, 2026 |
| Mfsa2026 32 | — | Upgrade to Mozilla Firefox ESR version 140.10Upgrade to the latest version of Mozilla Firefox | Apr 23, 2026 | Apr 21, 2026 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 140.10 | Apr 23, 2026 | Apr 21, 2026 |
| Oracle_linux | — | Upgrade firefox-x11Upgrade firefoxUpgrade thunderbird | Apr 29, 2026 | Apr 21, 2026 |
| Redhat_linux | — | Upgrade thunderbird-debugsourceUpgrade thunderbirdUpgrade firefoxNo solution existsUpgrade firefox-debuginfoUpgrade firefox-x11Upgrade firefox-debugsourceUpgrade thunderbird-debuginfo | Apr 29, 2026 | Apr 21, 2026 |
| Rocky_linux | — | Upgrade firefox-debuginfoUpgrade firefox-x11Upgrade thunderbird-debuginfoUpgrade firefox-debugsourceUpgrade firefoxUpgrade thunderbird-debugsourceUpgrade thunderbird | May 4, 2026 | Apr 28, 2026 |
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