A use-after-free vulnerability can occur when the thread for a Web Worker is freed from memory prematurely instead of from memory in the main thread while cancelling fetch operations. This vulnerability affects Firefox < 58.
CVSS Details
- CVSS 3.1 Base Score: 9.8
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Freebsd | — | Upgrade firefox-esrUpgrade linux-firefoxUpgrade linux-thunderbirdUpgrade waterfoxUpgrade thunderbirdUpgrade seamonkeyUpgrade libxulUpgrade linux-seamonkeyUpgrade firefox | Dec 10, 2025 | Jan 23, 2018 |
| Mfsa2018 02 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 58.0 | Jan 24, 2018 | Jan 23, 2018 |
| Suse | — | Upgrade MozillaFirefox-translations-commonUpgrade MozillaFirefox-translations-otherUpgrade MozillaFirefox | May 20, 2018 | Jan 24, 2018 |
| Ubuntu | — | Upgrade firefox | Apr 26, 2018 | Jan 24, 2018 |
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