CVE-2022-28754
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedZoom 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceZoom On-Premise Meeting Connector MMR before version 4.8.129.20220714 contains an improper access control vulnerability that allows authenticated users to bypass visibility controls, join meetings without appearing to other participants, self-admit from waiting rooms, and escalate to host privileges to cause meeting disruptions.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 4.8.129.20220714CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Verify Zoom Meeting Connector MMR is installedCheck your on-premise environment for Zoom Meeting Connector MMR software. This may be visible as a running service, installed package, or application process on your Zoom on-premise server.Affected if The software is present on the system
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Locate the installed version informationFind the version of the Zoom Meeting Connector MMR installation. This may be available via: the Zoom admin interface, a version file within the installation directory, a command-line query to the service (such as 'zmver' or similar), or system information about the installed package.Affected if Version information cannot be located or the software is found without version metadata
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Compare installed version against the affected rangeCompare your installed version number to 4.8.129.20220714. The affected version range is any version lower than 4.8.129.20220714.Affected if Installed version is less than 4.8.129.20220714
You are affected if Zoom Meeting Connector MMR is installed and its version is lower than 4.8.129.20220714.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped4.8.129.20220714
Upgrade Zoom On-Premise Meeting Connector MMR to version 4.8.129.20220714 or later to address the improper access control vulnerability.
4.8.129.20220714 or later
- Identify the current version of Zoom On-Premise Meeting Connector MMR by checking the system administration console or running the version check command
- Download the fixed version 4.8.129.20220714 or later from Zoom's official portal at explore.zoom.us
- Review Zoom's official upgrade documentation for Meeting Connector MMR
- Apply the upgrade following Zoom's standard upgrade procedure for On-Premise Meeting Connector
- Verify the upgrade was successful by confirming the new version number
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation3.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-28754 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2022-28754 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data