The Quarterly Threat Landscape Report is out. See what attackers are targeting now.Read report
Mozilla Firefox before 43.0 mishandles the # (number sign) character in a data: URI, which allows remote attackers to spoof web sites via unspecified vectors.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Freebsd | — | Upgrade libxulUpgrade linux-thunderbirdUpgrade seamonkeyUpgrade firefoxUpgrade linux-seamonkeyUpgrade thunderbirdUpgrade linux-firefoxUpgrade firefox-esr | Dec 10, 2025 | Dec 15, 2015 |
| Gentoo Linux | — | Upgrade www-client/firefox.Upgrade www-client/firefox-bin.Upgrade mail-client/thunderbird.Upgrade mail-client/thunderbird-bin. | Oct 30, 2017 | Dec 16, 2015 |
| Mfsa2015 141 | — | Upgrade to Mozilla Firefox version 43.0Upgrade to the latest version of Mozilla Firefox | Dec 18, 2015 | Dec 16, 2015 |
| Suse | — | Upgrade MozillaFirefox-translations-commonUpgrade MozillaFirefoxUpgrade MozillaFirefox-develUpgrade MozillaFirefox-translations-other | Jan 4, 2016 | Dec 16, 2015 |
| Ubuntu | — | Upgrade firefox | Dec 18, 2015 | Dec 15, 2015 |
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