CVE-2026-6776

Incorrect boundary conditions in the WebRTC: Networking component

High · published April 21, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
4.6
In the wild
Unconfirmed
What it is

Incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00158 · 4.6th percentile
Published
2026-04-21T12:41Z
EPSS history
Timeline
  • 21 APR 12:41Z
    Incorrect boundary conditions in the WebRTC: Networking component
    cvelistv5