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CVE-2026-4716

nvd nist
Published: Mar 24, 2026Modified: Jun 17, 2026

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9.1
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Exploitability: 3.9 / Impact: 5.2
Source: NVD

Description

Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Affected (2)

Products: Mozilla: Firefox
Mozilla
1 product
Firefox
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Mozilla
Firefox
Before 149.0
Firefox
Before 140.9.0

Related CWEs

CWE-908
Use of Uninitialized Resource
The product uses or accesses a resource that has not been initialized.

References (5)

Source: security@mozilla.org
Permissions Required
Source: security@mozilla.org
Vendor Advisory
Source: security@mozilla.org
Vendor Advisory
Source: security@mozilla.org
Source: security@mozilla.org

Timeline

No history available yet.