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

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Wed, 20 May 2026 15:00:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla thunderbird
CPEs cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*
Vendors & Products Mozilla thunderbird

Tue, 19 May 2026 17:45:00 +0000

Type Values Removed Values Added
Description Spoofing issue in the Web Speech component. This vulnerability was fixed in Firefox 151. Spoofing issue in the Web Speech component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
References

Tue, 19 May 2026 17:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284

Tue, 19 May 2026 15:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-290
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 19 May 2026 15:15:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
Weaknesses CWE-284
Vendors & Products Mozilla
Mozilla firefox

Tue, 19 May 2026 13:45:00 +0000

Type Values Removed Values Added
Description Spoofing issue in the Web Speech component. This vulnerability was fixed in Firefox 151.
Title Spoofing issue in the Web Speech component
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-05-19T17:10:53.774Z

Reserved: 2026-05-19T12:30:03.895Z

Link: CVE-2026-8963

cve-icon Vulnrichment

Updated: 2026-05-19T14:55:06.537Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-19T14:16:52.717

Modified: 2026-05-20T14:57:19.880

Link: CVE-2026-8963

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-19T19:15:12Z

Weaknesses