Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade thunderbirdUpgrade firefox-x11Upgrade firefox | May 31, 2026 | May 27, 2026 |
| Amazon Linux Ami 2 | — | Upgrade thunderbirdUpgrade firefox | Jun 9, 2026 | Jun 9, 2026 |
| Amazon_linux_2023 | — | Upgrade firefox-debuginfoUpgrade firefoxUpgrade firefox-debugsource | Jun 9, 2026 | May 19, 2026 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | May 24, 2026 | May 24, 2026 |
| Mfsa2026 46 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 151.0 | May 19, 2026 | May 19, 2026 |
| Mfsa2026 48 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 140.11 | May 19, 2026 | May 19, 2026 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 140.11Upgrade to the latest version of Mozilla Thunderbird | May 20, 2026 | May 19, 2026 |
| Oracle_linux | — | Upgrade firefoxUpgrade thunderbird | May 29, 2026 | May 19, 2026 |
| Redhat_linux | — | No solution existsUpgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade firefox-debugsourceUpgrade firefox-x11Upgrade thunderbird-debugsourceUpgrade firefoxUpgrade thunderbird | Jun 3, 2026 | May 19, 2026 |
| Rocky_linux | — | Upgrade thunderbird-debuginfoUpgrade firefox-debugsourceUpgrade firefox-x11Upgrade firefoxUpgrade firefox-debuginfoUpgrade thunderbird-debugsourceUpgrade thunderbird | Jun 1, 2026 | May 29, 2026 |
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