PT-2026-33944 · Mozilla · Firefox+1
CVE-2026-6758
·
Published
2026-04-21
·
Updated
2026-07-25
CVSS v2.0
7.8
High
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Firefox versions prior to 150
Thunderbird versions prior to 150
Description
A use-after-free issue exists in the JavaScript: WebAssembly component. Use-after-free is a memory corruption flaw that occurs when an application continues to use a pointer after it has been freed.
Recommendations
Update Firefox to version 150 or later.
Update Thunderbird to version 150 or later.
Fix
DoS
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Firefox
Thunderbird