CVE-2026-74977

Summary

Integer overflow in the Graphics component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.

Affected Software

VendorProductVersion RangeStatus
MozillaFirefox153.1 <= 153.*unaffected
MozillaFirefox154 <= *unaffected
MozillaThunderbird153.1 <= 153.*unaffected
MozillaThunderbird154 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

References