Firefox Web Speech Spoofing Vulnerability
CVE-2026-8963 Published on May 19, 2026
Spoofing issue in the Web Speech component
Spoofing issue in the Web Speech component. This vulnerability was fixed in Firefox 151.
Vulnerability Analysis
CVE-2026-8963 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, a high impact on integrity, and no impact on availability.
Weakness Type
Authentication Bypass by Spoofing
This attack-focused weakness is caused by improperly implemented authentication schemes that are subject to spoofing attacks.
Products Associated with CVE-2026-8963
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Affected Versions
Mozilla Firefox:- Version 151, <= * is unaffected.