CVE-2026-6774

Mitigation bypass in the DOM: Security component

Medium · published April 21, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
16.5
In the wild
Unconfirmed
What it is

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00258 · 16.5th percentile
Published
2026-04-21T12:41Z
EPSS history
Timeline
  • 21 APR 12:41Z
    Mitigation bypass in the DOM: Security component
    cvelistv5