VDB

GHSA-qf82-86x2-7q23

GHSA-qf82-86x2-7q23 PUBLISHED CVSS 9.800000190734863 CRITICAL

Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. 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 < 149.0.2 and Firefox ESR < 140.9.1.

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

  • Apr 7, 2026 CVE Published
  • Apr 14, 2026 Security Advisory
  • Jun 30, 2026 CVE Updated
  • Aug 6, 2026 Distribution Patch
  • Aug 6, 2026 Distribution Patch
  • Aug 6, 2026 Distribution Patch
  • Aug 6, 2026 Distribution Patch
  • Aug 6, 2026 Distribution Patch
  • Aug 6, 2026 Distribution Patch
  • Aug 6, 2026 Distribution Patch
  • Aug 6, 2026 Distribution Patch
  • Aug 6, 2026 Distribution Patch
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