Privilege escalation in the DOM: Networking component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.
CVSS Details
- CVSS 3.1 Base Score: 8.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade thunderbirdUpgrade firefox-x11Upgrade firefox | Oct 11, 2026 | Aug 24, 2026 |
| Amazon_linux_2023 | — | Upgrade firefox-debuginfoUpgrade firefox-debugsourceUpgrade firefox | Sep 1, 2026 | Aug 18, 2026 |
| Debian | — | Upgrade firefox-esrUpgrade thunderbird | Aug 20, 2026 | Aug 20, 2026 |
| Mfsa2026 74 | — | Upgrade to Mozilla Firefox version 154.0Upgrade to the latest version of Mozilla Firefox | Aug 18, 2026 | Aug 18, 2026 |
| Mfsa2026 75 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 115.39 | Aug 18, 2026 | Aug 18, 2026 |
| Mfsa2026 76 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 140.14 | Aug 18, 2026 | Aug 18, 2026 |
| Mfsa2026 77 | — | Upgrade to Mozilla Firefox ESR version 153.1Upgrade to the latest version of Mozilla Firefox | Aug 18, 2026 | Aug 18, 2026 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 153.1 | Aug 18, 2026 | Aug 18, 2026 |
| Redhat_linux | — | Upgrade thunderbird-debugsourceUpgrade thunderbirdUpgrade firefox-x11Upgrade firefoxUpgrade firefox-debugsourceUpgrade thunderbird-debuginfoNo solution existsUpgrade firefox-debuginfo | Aug 20, 2026 | Aug 18, 2026 |
| Rocky_linux | — | Upgrade firefox-debugsourceUpgrade thunderbird-debugsourceUpgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade thunderbirdUpgrade firefoxUpgrade firefox-x11 | Aug 26, 2026 | Aug 25, 2026 |
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