CVE-2026-8090

Use-after-free in the DOM: Networking component

High · published May 7, 2026

CVSS v3.1
7.3
EPSS
0%
Percentile
37.7
In the wild
Unconfirmed
What it is

Use-after-free in the DOM: Networking component. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.

The record
Technical detail
CVSS v3.1
7.3 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00445 · 37.7th percentile
Published
2026-05-07T12:45Z
EPSS history
Timeline
  • 07 MAY 12:45Z
    Use-after-free in the DOM: Networking component
    cvelistv5