CVE-2026-8963: Spoofing issue in the Web Speech component
Spoofing issue in the Web Speech component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 151 - Upgrade
Upgrade
Mozilla Firefox (Web Speech)to a version that resolves this vulnerability.Fixed in 151 - Upgrade
Upgrade
Mozilla Thunderbird (Web Speech)to a version that resolves this vulnerability.Fixed in 151
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2026-8945
- CVE-2026-8946
- CVE-2026-8947
- CVE-2026-8948
- CVE-2026-8949
- CVE-2026-8950
- CVE-2026-8951
- CVE-2026-8952
- CVE-2026-8953
- CVE-2026-8954
- CVE-2026-8955
- CVE-2026-8956
- CVE-2026-8957
- CVE-2026-8958
- CVE-2026-8959
- CVE-2026-8960
- CVE-2026-8961
- CVE-2026-8962
- CVE-2026-8963
- CVE-2026-8964
- CVE-2026-8965
- CVE-2026-8966
- CVE-2026-8967
- CVE-2026-8968
- CVE-2026-8969
- CVE-2026-8970
- CVE-2026-8971
- CVE-2026-8972
- CVE-2026-8973
- CVE-2026-8974
- CVE-2026-8975
Frequently Asked Questions
What is the severity of CVE-2026-8963?
The severity of CVE-2026-8963 is categorized as moderate due to its potential for spoofing attacks.
How do I fix CVE-2026-8963?
To fix CVE-2026-8963, upgrade to Firefox or Thunderbird version 151 or later.
What component is affected by CVE-2026-8963?
CVE-2026-8963 affects the Web Speech component in Firefox and Thunderbird.
What versions of Firefox are impacted by CVE-2026-8963?
CVE-2026-8963 impacts all Firefox versions prior to 151.
What versions of Thunderbird are impacted by CVE-2026-8963?
CVE-2026-8963 impacts all Thunderbird versions prior to 151.