Skip to content
CVE PROGRAM SOURCE RECORD9.8 Critical

CVE-2026-74989

Internally found bugs fixed in Firefox 154

Description

Internally found bugs present in Firefox 153. 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 154 and Thunderbird 154.

Affected products

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

Mozilla Firefox

  • 154 to ≤ *unaffected

Mozilla Thunderbird

  • 154 to ≤ *unaffected

References