VULNERABILITY INTELLIGENCE

CVE-2026-16407

CVSS score9.8 CRITICAL
EPSS probability0.51%
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:H/A:H

Description

Mitigation bypass in the DOM: Service Workers component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-284

Primary references