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CVE-2022-28749

Insufficient Authorization Check During Meeting Join

MEDIUM
4.3
CVSS Score
Published: June 15, 2022 at 08:12 PM UTC
Updated: June 17, 2026 at 04:38 AM UTC
2 products affected across 2 vendorsOn Premise Meeting Connector Multimedia RouterOn Premise Meeting Connector Multimedia Router

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.6%

Description

Zooms On-Premise Meeting Connector MMR before version 4.8.113.20220526 fails to properly check the permissions of a Zoom meeting attendee. As a result, a threat actor in the Zooms waiting room can join the meeting without the consent of the host.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

On Premise Meeting Connector Multimedia Router· Zoom
95%
4.8.113.20220526
On Premise Meeting Connector Multimedia Router· Zoom Video Communications
60%
v < 4.8.113.20220526
Affected range stops below 4.8.113.20220526, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://explore.zoom.us/en/trust/security/security-bulletin/

CVSS

4.3MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-Other

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