VDB

CVE-2026-74982

CVE-2026-74982 PUBLISHED CVSS 7.5 HIGH

Reported by mozilla · Published August 18, 2026

Denial-of-service in the Widget component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.

Risk Scores

CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products

VendorProductVersions
MozillaFirefox153.1, 154
MozillaThunderbird153.1, 154
MozillaThunderbird153.1, 154, 153.1
MozillaFirefox153.1, 154, 153.1

Timeline

  • Aug 18, 2026 Coalition ESS Score
  • Aug 18, 2026 CVE Published
  • Aug 20, 2026 CVE Updated
  • Aug 24, 2026 EPSS Score
  • Aug 26, 2026 EPSS Score
  • Sep 2, 2026 EPSS Score
  • Sep 5, 2026 Security Advisory
  • Sep 6, 2026 EPSS Score
  • Sep 9, 2026 EPSS Score
  • Sep 12, 2026 EPSS Score
  • Sep 16, 2026 EPSS Score
  • Sep 18, 2026 EPSS Score

References

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