VULNERABILITY INTELLIGENCE

CVE-2026-16405

CVSS score7.5 HIGH
EPSS probability0.44%
CISA KEVNot currently listed
Published2026-07-21
Last modified2026-10-24
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-200

Primary references