VDB

CISA-2026-2786

CISA-2026-2786 PUBLISHED CVSS 8.8 HIGH

Reported by mozilla · Published February 24, 2026

Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.

Risk Scores

CVSS 3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Products

VendorProductVersions
MozillaFirefoxunspecified
MozillaFirefox ESRunspecified
MozillaThunderbirdunspecified
MozillaThunderbirdunspecified
MozillaFirefox ESRunspecified, unspecified
MozillaThunderbirdunspecified, unspecified, unspecified
MozillaFirefoxunspecified, unspecified

Timeline

  • Feb 24, 2026 CVE Published
  • Mar 6, 2026 CVE Updated

References

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