Vulnerability Description
When using certain blank characters in a URL, they where incorrectly rendered as spaces instead of an encoded URL. This vulnerability affects Firefox < 77.
CVSS Score
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 77.0 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1629506Issue TrackingPermissions RequiredVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-20/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1629506Issue TrackingPermissions RequiredVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-20/Vendor Advisory
FAQ
What is CVE-2020-12409?
CVE-2020-12409 is a vulnerability with a CVSS score of 8.8 (HIGH). When using certain blank characters in a URL, they where incorrectly rendered as spaces instead of an encoded URL. This vulnerability affects Firefox < 77.
How severe is CVE-2020-12409?
CVE-2020-12409 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-12409?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox.