Vulnerability in Mozilla Firefox
CVE-2020-12409
When using certain blank characters in a URL, they where incorrectly rendered as spaces instead of an encoded URL. This vulnerability affects Firefox < 77.
EPSS: 0.010 (59.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Mozilla Firefox — versions unspecified
References
- security@mozilla.org (x_refsource_MISC, Vendor Advisory)
- security@mozilla.org (Permissions Required, x_refsource_MISC, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-12409?
- CVE-2020-12409 is a high-severity vulnerability in Mozilla Firefox. CVSS score: 8.8/10. Published 2020-07-09.
- How severe is CVE-2020-12409?
- High severity. CVSS v3 base score is 8.8 out of 10.