VULNERABILITY INTELLIGENCE

CVE-2026-4692

CVSS score10 CRITICAL
EPSS probability0.51%
CISA KEVNot currently listed
Published2026-03-24
Last modified2026-07-15
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Description

Sandbox escape in the Responsive Design Mode component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Weakness classification

  • nvd@nist.gov: NVD-CWE-noinfo
  • 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-653

Primary references