CVE-2026-2807 PUBLISHED

Memory safety bugs fixed in Firefox 148 and Thunderbird 148

Assigner: mozilla
Reserved: 19.02.2026 Published: 24.02.2026 Updated: 24.02.2026

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 affects Firefox < 148.

Product Status

Vendor Mozilla
Product Firefox
Versions
  • affected from unspecified to 148 (excl.)

Credits

  • Agi Sferro, Andrew McCreight, Randell Jesup, Tom Schuster

References