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CVE-2021-43533

MEDIUM CVSS: 4.3 Published: 2021-12-08 Modified: 2026-06-17

Description

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.

Affected Platforms

Mozilla Firefox

Weakness Type

NVD-CWE-noinfo

References