PT-2026-61898 · Mozilla · Firefox+1

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CVE-2026-16386

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Published

2026-07-21

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Updated

2026-08-31

CVSS v3.1

7.5

High

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153
Description An information disclosure issue exists in the Graphics: WebGPU component caused by uninitialized memory. This occurs when the system fails to clear a memory area before reusing it, potentially allowing sensitive data from previous operations to be read.
Recommendations Update Firefox to version 153 or later. Update Thunderbird to version 153 or later.

Fix

Use of Uninitialized Resource

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Weakness Enumeration

Related Identifiers

CVE-2026-16386
OPENSUSE-SU-2026:11358-1
OPENSUSE-SU-2026:11373-1
OPENSUSE-SU-2026:21713-1
SUSE-SU-2026:23411-1

Affected Products

Firefox
Thunderbird