PT-2026-33972

CVE-2026-6786

Published

2026-04-21

Updated

2026-07-25

Description by

CVSS 3.1

9.8

Critical

MetricsAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Firefox ESR version 140.9 Thunderbird ESR version 140.9 Firefox version 149 Thunderbird version 149

Description Memory safety bugs involving memory corruption could allow an attacker to run arbitrary code.

Recommendations Update Firefox ESR to version 140.10. Update Thunderbird ESR to version 140.10. Update Firefox to version 150. Update Thunderbird to version 150.

Exploitability

Fix

Impacts

Researchers