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Vulnerability record · CVE-2022-28761 · published 14 October 2022

CVE-2022-28761: Zoom on-premise meeting connector mmr improper access control vulnerability

Zoom · Zoom On Premise Meeting Connector Mmr

Zoom On-Premise Meeting Connector MMR before version 4.8.20220916.131 contains an improper access control vulnerability. As a result, a malicious actor in a meeting or webinar they are authorized to join could prevent participants from receiving audio and video causing meeting disruptions.

6.5 CVSS 3.1 Medium EPSS 0.74% · top 46.9% CWE-284 · Improper access control
6.5CVSS 3.1 base score
0.74%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Zoom On-Premise Meeting Connector MMR before version 4.8.20220916.131 contains an improper access control vulnerability. As a result, a malicious actor in a meeting or webinar they are authorized to join could prevent participants from receiving audio and video causing meeting disruptions.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2021-34423Zoom meetings classic buffer overflow vulnerabilityA buffer overflow vulnerability was discovered in Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.8.4, Zoom C…EPSS 3.3%8.6CVE-2022-28759Zoom on-premise meeting connector mmr improper access control vulnerabilityZoom On-Premise Meeting Connector MMR before version 4.8.20220815.130 contains an improper access control vulnerability. As a result, a malicious act…EPSS 0.61%8.2CVE-2022-28758Zoom on-premise meeting connector mmr improper access control vulnerabilityZoom On-Premise Meeting Connector MMR before version 4.8.20220815.130 contains an improper access control vulnerability. As a result, a malicious act…EPSS 0.69%7.5CVE-2022-22783Zoom on-premise meeting connector controller vulnerabilityA vulnerability in Zoom On-Premise Meeting Connector Controller version 4.8.102.20220310 and On-Premise Meeting Connector MMR version 4.8.102.2022031…EPSS 1.0%7.5CVE-2021-34424Zoom meetings out-of-bounds read vulnerabilityA vulnerability was discovered in the Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.8.4, Zoom Client for Me…EPSS 1.7%7.2CVE-2021-34417Zoom on-premise meeting connector controller improper input validation vulnerabilityThe network proxy page on the web portal for the Zoom On-Premise Meeting Connector Controller before version 4.6.365.20210703, Zoom On-Premise Meetin…EPSS 1.2%6.5CVE-2022-28760Zoom on-premise meeting connector mmr improper access control vulnerabilityZoom On-Premise Meeting Connector MMR before version 4.8.20220815.130 contains an improper access control vulnerability. As a result, a malicious act…EPSS 0.56%5.3CVE-2021-34418Zoom on-premise meeting connector controller null pointer dereference vulnerabilityThe 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 …EPSS 0.63%

Source: NIST National Vulnerability Database (record CVE-2022-28761), CISA KEV, FIRST EPSS (scores of 2026-10-10). This page is refreshed as NVD updates the record.