6.5 Medium
CVE-2026-6770
Mozilla Firefox vulnerability
MozillaFirefox
Status
- Not in CISA KEV
- Vendor fix available
Exploit probabilityEPSSchecked 25 Oct
0.4%probability of exploitation in the next 30 days
Higher than 33% of scored CVEs
SeverityCVSS
6.5Medium
Description NVD
Other issue in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Coverage 2 articles · 2 outlets
See the full timelineShow as table
| Published (UTC) | Outlet | Headline |
|---|---|---|
| Mon 27 Apr · 09:21 UTC | SecurityWeek | CVE-2026-6770 lets sites track Firefox, Tor users via IndexedDB |
| Mon 27 Apr · 11:32 UTC | Security Affairs | Firefox bug CVE-2026-6770 enabled cross-site tracking and Tor fingerprinting |
- Firefox bug CVE-2026-6770 enabled cross-site tracking and Tor fingerprintingSecurity Affairs
- CVE-2026-6770 lets sites track Firefox, Tor users via IndexedDBSecurityWeek · first in our coverage