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CVE-2026-16405

nvd nist
Published: Jul 21, 2026Modified: Oct 24, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Exploitability: 3.9 / Impact: 3.6
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

Information disclosure in the Networking: WebSockets component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.

Affected (2)

Products: Mozilla: Firefox
Mozilla
1 product
Firefox
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Mozilla
Firefox
version < 153.0.0
Firefox
140.1.0 ≤ version < 140.13.0

Related CWEs

CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

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.