CVE-2026-7323

Summary

Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. 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 150.0.1, Firefox ESR 140.10.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.

Affected Software

VendorProductVersion RangeStatus
MozillaFirefox140.10.1 <= 140.*unaffected
MozillaFirefox150.0.1 <= *unaffected
MozillaThunderbird140.10.1 <= 140.*unaffected
MozillaThunderbird150.0.1 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: total

firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10.1 and Firefox 150.0.1

Additional References

References