4.1 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
32.6%
When parsing internationalized domain names, high bits of the characters in the URLs were sometimes stripped, resulting in inconsistencies that could lead to user confusion or attacks such as phishing. This vulnerability affects Firefox < 94.
bugzilla.mozilla.org/show_bug.cgi?id=1724233
www.mozilla.org/security/advisories/mfsa2021-48/