CVE-2026-6763

Summary

Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Affected Software

VendorProductVersion RangeStatus
MozillaFirefox140.10 <= 140.*unaffected
MozillaFirefox150 <= *unaffected
MozillaThunderbird140.10 <= 140.*unaffected
MozillaThunderbird150 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

References