TI-2022-11383 Aliases CVE-2022-28753 GHSA-r447-vfqg-5642

Zoom On-Premise Deployments: Improper Access Control Vulnerability

LOW 32CWE-284Published 2022-08-11 · Updated 2024-09-16

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: Low · High · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-284.

Summary

Zoom On-Premise Meeting Connector MMR before version 4.8.129.20220714 contains an improper access control vulnerability. As a result, a malicious actor can join a meeting which they are authorized to join without appearing to the other participants, can admit themselves into the meeting from the waiting room, and can become host and cause other meeting disruptions.

Why it matters now

EPSS 0.00529 44th percentileScored 2026-11-07

Fix Fixed Zoom On-Premise Meeting Connector MMR (Zoom Video Communications Inc): 4.8.129.20220714

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Zoom Video Communications, Inc.	Zoom On-Premise Meeting Connector MMR	before 4.8.129.20220714	4.8.129.20220714	Patch available	CNA

Zoom On-Premise Meeting Connector MMR VendorZoom Video Communications, Inc. Affected before 4.8.129.20220714 Fixed in 4.8.129.20220714 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:zoom:meeting_connector::::::::	before 4.8.129.20220714	Vulnerable	Zoom Video Communications, Inc.

cpe:2.3:a:zoom:meeting_connector:*:*:*:*:*:*:*:* Versions before 4.8.129.20220714 Vulnerable ·Zoom Video Communications, Inc.

Remediation

Fix · CNA Zoom On-Premise Meeting Connector MMR (Zoom Video Communications Inc) Fixed in 4.8.129.20220714

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2022-08-11
Zoom On-Premise Meeting Connector MMR 4.8.129.20220714
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2022-11384 Zoom On-Premise Deployments: Improper Access Control VulnerabilityPriority LOW 32
Show all 2 records →

Timeline

2026-10-02 Threatist record created from CVE-2022-28753
2026-10-03 Alias added: GHSA-r447-vfqg-5642

References

Advisory 1

https://explore.zoom.us/en/trust/security/security-bulletin/

TI-2022-11380 Zoom On-Premise Deployments: Stack Buffer Overflow in Meeting Connector CVSS 3.1CRITICAL 9.8
TI-2021-13450 Improper input validation in Zoom On-Premise Meeting Connector Controller, Zoom… CVSS 3.1CRITICAL 9.8
TI-2021-13449 Resource allocation without limits in Zoom On-Premise Meeting Connector Controller CVSS 3.1HIGH 7.5
TI-2021-13448 Improper input validation in Zoom on-premise Meeting Connector Controller, Zoom… CVSS 3.1HIGH 7.2
TI-2022-11384 Zoom On-Premise Deployments: Improper Access Control Vulnerability CVSS 3.1HIGH 7.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences