VDB

GHSA-mmvq-h6g9-8h39

GHSA-mmvq-h6g9-8h39 PUBLISHED CVSS 9.800000190734863 CRITICAL

Memory safety bugs present in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, and Firefox ESR < 140.9.

Risk Scores

CVSS 3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Timeline

  • Mar 24, 2026 CVE Published
  • Mar 25, 2026 CVE Updated
  • Apr 10, 2026 Security Advisory
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