The Quarterly Threat Landscape Report is out. See what attackers are targeting now.Read report
Privilege escalation due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade firefox-x11Upgrade firefoxUpgrade thunderbird | Oct 11, 2026 | Sep 14, 2026 |
| Amazon Linux Ami 2 | — | Upgrade firefox | Oct 19, 2026 | Oct 19, 2026 |
| Amazon_linux_2023 | — | Upgrade firefox-debuginfoUpgrade firefoxUpgrade firefox-debugsource | Sep 30, 2026 | Sep 1, 2026 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Sep 21, 2026 | Sep 1, 2026 |
| Mfsa2026 82 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 155.0 | Sep 1, 2026 | Sep 1, 2026 |
| Mfsa2026 83 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 115.40 | Sep 1, 2026 | Sep 1, 2026 |
| Mfsa2026 84 | — | Upgrade to Mozilla Firefox ESR version 140.15Upgrade to the latest version of Mozilla Firefox | Sep 1, 2026 | Sep 1, 2026 |
| Mfsa2026 85 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 153.2 | Sep 1, 2026 | Sep 1, 2026 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 153.2Upgrade to the latest version of Mozilla Thunderbird | Sep 1, 2026 | Sep 1, 2026 |
| Oracle_linux | — | Upgrade firefoxUpgrade thunderbirdUpgrade firefox-x11 | Oct 22, 2026 | Sep 1, 2026 |
| Redhat_linux | — | Upgrade firefox-debugsourceNo solution existsUpgrade firefox-debuginfoUpgrade firefox-x11Upgrade thunderbird-debuginfoUpgrade firefoxUpgrade thunderbirdUpgrade thunderbird-debugsource | Sep 3, 2026 | Sep 1, 2026 |
| Rocky_linux | — | Upgrade firefox-x11Upgrade firefox-debugsourceUpgrade firefox-debuginfoUpgrade thunderbirdUpgrade thunderbird-debuginfoUpgrade firefoxUpgrade thunderbird-debugsource | Sep 28, 2026 | Sep 25, 2026 |
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