CVE-2026-46404EPSS p35.5%

CVE-2026-46404CVE-2026-46404

Description

BigBlueButton is an open-source virtual classroom. Prior to 3.0.23, the presentation URL validation did not properly restrict access to site local and link local addresses. The redirect following logic now pins resolved IPs. This issue is fixed in version 3.0.23.

Scoring

CVSS 6.8 ()
VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
EPSS0.43% probability of exploitation · percentile 35.5% · 2026-10-05T12:00:23Z
Last modified2026-07-17
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.