CVE-2026-5732

Summary

Incorrect boundary conditions, integer overflow in the Graphics: Text component. This vulnerability was fixed in Firefox 149.0.2, Firefox ESR 140.9.1, Thunderbird 149.0.2, and Thunderbird 140.9.1.

Affected Software

VendorProductVersion RangeStatus
MozillaFirefox140.9.1 <= 140.*unaffected
MozillaFirefox149.0.2 <= *unaffected
MozillaThunderbird140.9.1 <= 140.*unaffected
MozillaThunderbird149.0.2 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

firefox: thunderbird: Incorrect boundary conditions, integer overflow in the Graphics: Text component

Additional References

References