PT-2026-61895
CVE-2026-16383
·
Published
2026-07-21
·
Updated
2026-09-18
Description by
CVSS 3.1
10
CriticalMetricsAV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions
Firefox versions prior to 153
Firefox ESR versions prior to 140.13
Thunderbird versions prior to 153
Thunderbird versions prior to 140.13
Description
A mitigation bypass exists within the DOM: Networking component.
Recommendations
Update Firefox to version 153 or later.
Update Firefox ESR to version 140.13 or later.
Update Thunderbird to version 153 or later.
Update Thunderbird to version 140.13 or later.
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