CVE-2026-2803

Information disclosure, mitigation bypass in the Settings UI component

High · published February 24, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
41.7
In the wild
Unconfirmed
What it is

Information disclosure, mitigation bypass in the Settings UI component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00497 · 41.7th percentile
Published
2026-02-24T13:33Z
EPSS history
Timeline
  • 24 FEB 13:33Z
    Information disclosure, mitigation bypass in the Settings UI component
    cvelistv5