The URL parsing implementation in Mozilla Firefox before 42.0 improperly recognizes escaped characters in hostnames within Location headers, which allows remote attackers to obtain sensitive information via vectors involving a redirect.
CVSS Details
- CVSS 3.1 Base Score: 4.3
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Freebsd | — | Upgrade nsprUpgrade libxulUpgrade seamonkeyUpgrade firefoxUpgrade linux-firefoxUpgrade thunderbirdUpgrade linux-thunderbirdUpgrade linux-c6-nsprUpgrade firefox-esrUpgrade linux-seamonkeyUpgrade nss | Dec 10, 2025 | Nov 19, 2015 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird-bin.Upgrade www-client/firefox-bin.Upgrade www-client/firefox.Upgrade mail-client/thunderbird. | Oct 30, 2017 | Nov 5, 2015 |
| Mfsa2015 129 | — | Upgrade to Mozilla Firefox version 42.0Upgrade to the latest version of Mozilla Firefox | Nov 4, 2015 | Nov 3, 2015 |
| Oracle Solaris | — | Upgrade runtime/tcl-8/tcl-sqlite-3 to version 3.9.2-0.175.3.8.0.2.0 on Solaris 11.3Upgrade database/sqlite-3 to version 3.9.2-0.175.3.8.0.2.0 on Solaris 11.3Upgrade database/sqlite-3/documentation to version 3.9.2-0.175.3.8.0.2.0 on Solaris 11.3Upgrade web/browser/firefox to version 38.4.0-0.175.3.8.0.2.0 on Solaris 11.3 | May 29, 2017 | Nov 5, 2015 |
| Suse | — | Upgrade MozillaFirefoxUpgrade MozillaFirefox-translations-commonUpgrade MozillaFirefox-develUpgrade MozillaFirefox-translations-other | Dec 18, 2015 | Nov 5, 2015 |
| Ubuntu | — | Upgrade firefox | Nov 9, 2015 | Nov 4, 2015 |
Prioritise with Active Threat Intelligence
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