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9.8 Critical

CVE-2026-2807 Memory safety bugs present in Firefox 147 and Thunderbird 147

Description

Memory safety bugs present in Firefox 147 and Thunderbird 147. 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 148 and Thunderbird 148.

Affected products and versions

Product Affected versions Fixed in
Firefox 148 earliest → < 148 148
Thunderbird 148 earliest → < 148 148
Red Hat Enterprise Linux 10 Versions not published
Red Hat Enterprise Linux 6 Versions not published
Red Hat Enterprise Linux 7 Versions not published
Red Hat Enterprise Linux 8 Versions not published
Red Hat Enterprise Linux 9 Versions not published

References

Timeline

  1. Published
  2. Last modified

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