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CVE PROGRAM SOURCE RECORD9.8 Critical

CVE-2026-0892

Memory safety bugs fixed in Firefox 147 and Thunderbird 147

Description

Memory safety bugs present in Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 147 and Thunderbird 147.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Mozilla Firefox

  • 147 to ≤ *unaffected

Mozilla Thunderbird

  • 147 to ≤ *unaffected

References