AUGUST 4, 2026
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Case File

CVE-2021-34418

MEDIUM · CVSS 4 EPSS 0.61%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-11-11 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.0. See the original NVD description below for full technical details.

CVE
CVE-2021-34418
Severity
MEDIUM
CVSS
4
EPSS
0.61%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)