CVE-2026-84142 (GCVE-0-2026-84142)
Vulnerability from cvelistv5
Published
2026-09-01 12:19
Modified
2026-09-03 17:23
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
Internally found bugs present in Thunderbird 154. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155 and Thunderbird 155.
References
Impacted products
Vendor Product Version
Mozilla Firefox Unaffected: 155
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