Memory safety bug present in Firefox ESR 128.10, and Thunderbird 128.10. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox ESR 128.11 and Thunderbird 128.11.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade firefoxUpgrade thunderbirdUpgrade firefox-x11 | May 30, 2025 | May 27, 2025 |
| Amazon Linux Ami 2 | — | Upgrade thunderbirdUpgrade firefoxUpgrade thunderbird-debuginfoUpgrade firefox-debuginfo | Jun 12, 2025 | May 27, 2025 |
| Amazon_linux_2023 | — | Upgrade firefox-debugsourceUpgrade firefoxUpgrade firefox-debuginfo | Jun 11, 2025 | May 27, 2025 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | May 29, 2025 | May 27, 2025 |
| Freebsd | — | Upgrade firefox-esrUpgrade thunderbird | May 31, 2025 | May 30, 2025 |
| Mfsa2025 44 | — | Upgrade to Mozilla Firefox ESR version 128.11Upgrade to the latest version of Mozilla Firefox | May 28, 2025 | May 27, 2025 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 128.11 | May 28, 2025 | May 27, 2025 |
| Oracle_linux | — | Upgrade thunderbirdUpgrade firefox-x11Upgrade firefox | May 30, 2025 | May 27, 2025 |
| Redhat_linux | — | Upgrade thunderbird-debugsourceUpgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade thunderbirdUpgrade firefoxNo solution existsUpgrade firefox-debugsourceUpgrade firefox-x11 | May 30, 2025 | May 27, 2025 |
| Rocky_linux | — | Upgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade firefox-debugsourceUpgrade thunderbird-debugsourceUpgrade firefoxUpgrade firefox-x11Upgrade thunderbird | Jul 31, 2025 | Jul 29, 2025 |
| Suse | — | Upgrade MozillaThunderbird-translations-commonUpgrade libmozjs-128-0Upgrade mozillafirefox-branding-upstreamUpgrade MozillaFirefox-translations-otherUpgrade mozjs128-develUpgrade mozjs128Upgrade MozillaFirefoxUpgrade MozillaThunderbird-translations-otherUpgrade MozillaThunderbirdUpgrade MozillaFirefox-develUpgrade MozillaFirefox-translations-common | Jun 3, 2025 | May 27, 2025 |
| Ubuntu | — | Upgrade thunderbird | Jul 23, 2025 | May 27, 2025 |
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub