CVE-2025-9183

Spoofing issue in the Address Bar component

State: Published
Severity: 6.5 Medium
Published: Aug 19, 2025
Updated: Apr 13, 2026
Reserved: Aug 19, 2025

Description

Spoofing issue in the Address Bar component. This vulnerability was fixed in Firefox 142 and Firefox ESR 140.2.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N	CISA-ADP

Weaknesses

CWE-451 User Interface (UI) Misrepresentation of Critical Information

Affected Products

Product	Versions
FirefoxMozilla	140.2 through 140.*Not affected 142 and laterNot affected

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1976102
https://www.mozilla.org/security/advisories/mfsa2025-64/
https://www.mozilla.org/security/advisories/mfsa2025-67/

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