Description
If a domain name contained a RTL character, it would cause the domain to be rendered to the right of the path. This could lead to user confusion and spoofing attacks. <br>*This bug only affects Firefox for Android. Other operating systems are unaffected.*<br>*Note*: Due to a clerical error this advisory was not included in the original announcement, and was added in Feburary 2022. This vulnerability affects Firefox < 92.
Published: 2022-12-22
Score: 4.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-34079 If a domain name contained a RTL character, it would cause the domain to be rendered to the right of the path. This could lead to user confusion and spoofing attacks. <br>*This bug only affects Firefox for Android. Other operating systems are unaffected.*<br>*Note*: Due to a clerical error this advisory was not included in the original announcement, and was added in Feburary 2022. This vulnerability affects Firefox < 92.
History

Tue, 15 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.0073}

epss

{'score': 0.00783}


Wed, 16 Apr 2025 16:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-1007
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2025-04-16T15:49:45.732Z

Reserved: 2022-02-18T00:00:00.000Z

Link: CVE-2021-4221

cve-icon Vulnrichment

Updated: 2024-08-03T17:16:04.358Z

cve-icon NVD

Status : Modified

Published: 2022-12-22T20:15:12.337

Modified: 2025-04-16T16:15:19.290

Link: CVE-2021-4221

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses