CVE-2021-34415

HIGH 7.5CVE-2021-34415 · Published 27/09/2021 · updated 17/06/2026

In short

CVE-2021-34415 is a HIGH (CVSS 7.5) vulnerability affecting meeting connector (zoom).
Chance of exploitation in the next 30 days (EPSS): 0.98%, higher than 62.2% of all vulnerabilities.
Fix: update to 4.6.358.20210205 or later.

Package	Affected versions	Patched versions
meeting connector zoom	`< 4.6.358.20210205`	`4.6.358.20210205`

Description

The Zone Controller service in the Zoom On-Premise Meeting Connector Controller before version 4.6.358.20210205 does not verify the cnt field sent in incoming network packets, which leads to exhaustion of resources and system crash.

References

explore.zoom.us/en/trust/security/security-bulletin · Vendor Advisory

More vulnerabilities in meeting connector

See all →

Running one of these products? Scan your site to see whether it exposes a vulnerable version.

Scan my site free

Package

Affected versions

Patched versions

meeting connector

zoom

< 4.6.358.20210205

4.6.358.20210205

More vulnerabilities in meeting connector

See all →