CVE-2021-34418

MEDIUM

Zoom On-Premise Meeting Connector < 4.6.239.20200613 - Denial of Service via NULL Byte Authentication Bypass

Title source: llm
STIX 2.1

Description

The login routine of the web console in the Zoom On-Premise Meeting Connector before version 4.6.239.20200613, Zoom On-Premise Meeting Connector MMR before version 4.6.239.20200613, Zoom On-Premise Recording Connector before version 3.8.42.20200905, Zoom On-Premise Virtual Room Connector before version 4.4.6344.20200612, and Zoom On-Premise Virtual Room Connector Load Balancer before version 2.5.5492.20200616 fails to validate that a NULL byte was sent while authenticating. This could lead to a crash of the login service.

References (1)

Core 1
Core References

Scores

CVSS v3 4.0
EPSS 0.0018
EPSS Percentile 39.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Details

CWE
CWE-476
Status published
Products (5)
zoom/zoom_on-premise_meeting_connector_controller < 4.6.239.20200613
zoom/zoom_on-premise_meeting_connector_mmr < 4.6.239.20200613
zoom/zoom_on-premise_recording_connector < 3.8.42.20200905
zoom/zoom_on-premise_virtual_room_connector < 4.4.6344.20200612
zoom/zoom_on-premise_virtual_room_connector_load_balancer < 2.5.5492.20200616
Published Nov 11, 2021
Tracked Since Feb 18, 2026