PT-2026-61882 · Mozilla · Firefox+1

CVE-2026-16370

Published

2026-07-21

Updated

2026-08-31

CVSS v3.1

9.1

Critical

Vector

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

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153

Description A mitigation bypass exists within the DOM: Networking component.

Recommendations Update Firefox to version 153. Update Thunderbird to version 153.

Fix

Protection Mechanism Failure

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CVE-2026-16370

OPENSUSE-SU-2026:11358-1

OPENSUSE-SU-2026:11373-1

OPENSUSE-SU-2026:21713-1

SUSE-SU-2026:23411-1

Firefox

Thunderbird