CVE-2026-8963

Spoofing issue in the Web Speech component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

Score

CVSS 3.1 7.5 High

Status

Analyzed - security@mozilla.org

Published

2026-05-19

Last modified

2026-05-19

Weaknesses

CWE-290

Affected products

• Firefox (Mozilla)
• Thunderbird (Mozilla)

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=2021222
• https://www.mozilla.org/security/advisories/mfsa2026-46/
• https://www.mozilla.org/security/advisories/mfsa2026-50/