CVE-2025-5268

Summary

Memory safety bugs present in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10. 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 139, Firefox ESR 128.11, Thunderbird 139, and Thunderbird 128.11.

Affected Software

VendorProductVersion RangeStatus
MozillaFirefox128.11 <= 128.*unaffected
MozillaFirefox139 <= *unaffected
MozillaThunderbird128.11 <= 128.*unaffected
MozillaThunderbird139 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

CVE Program Container

Additional References

References