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9.8 Critical

CVE-2025-8044 Memory safety bugs present in Firefox 140 and Thunderbird 140

Description

Memory safety bugs present in Firefox 140 and Thunderbird 140. 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 141 and Thunderbird 141.

Affected products and versions

Product Affected versions Fixed in
Firefox 141 earliest → < 141 141
Thunderbird 141 earliest → < 141 141

References

Timeline

  1. Published
  2. Last modified

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