CVE-2022-28760
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 4.8.20220815.130 contains an improper access control vulnerability. As a result, a malicious actor could obtain the audio and video feed of a meeting they were not authorized to join 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 · moderate confidenceImproper access control vulnerability in Zoom On-Premise Meeting Connector MMR allows unauthorized users to access audio/video feeds of meetings they were not authorized to join. This is a broken access control flaw where the system fails to properly validate meeting authorization before granting access to meeting content.
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< 4.8.20220815.130CVSS 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
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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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Identify if Zoom On-Premise Meeting Connector MMR is installedReview your Zoom on-premise deployment inventory or check installed components for Zoom Meeting Connector MMR. This is typically deployed as part of a Zoom on-premise infrastructure.Affected if The Zoom On-Premise Meeting Connector MMR component is present in your environment
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Locate the installed version of the MMR componentAccess the Zoom On-Premise admin interface or check the MMR server directly for its software version. The version is usually displayed in the admin dashboard or obtainable via command line tools provided by Zoom.Affected if The installed version is lower than 4.8.20220815.130
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Verify the MMR component is actively processing meetingsCheck the MMR service status and review active meeting sessions on the Meeting Connector MMR. Confirm that the MMR is handling audio/video media routing for meetings.Affected if The MMR component is enabled and actively routing meeting audio/video traffic
You are affected if you have Zoom On-Premise Meeting Connector MMR installed with a version lower than 4.8.20220815.130 and the MMR component is actively processing meeting audio/video feeds.
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 · scoped4.8.20220815.130
Upgrade the Zoom On-Premise Meeting Connector MMR to version 4.8.20220815.130 or later to remediate the improper access control vulnerability.
4.8.20220815.130
- 1. Download Zoom On-Premise Meeting Connector MMR version 4.8.20220815.130 or later from the official Zoom repository (explore.zoom.us)
- 2. Review Zoom's upgrade documentation for On-Premise Meeting Connector
- 3. Schedule a maintenance window as upgrades may require downtime
- 4. Back up current configuration settings
- 5. Perform the upgrade following Zoom's standard upgrade procedures
- 6. Verify the upgrade was successful and the service is running
- 7. Test that the access control vulnerability is resolved by confirming unauthorized users cannot access meeting audio/video feeds
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-2022-28760 — 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-2022-28760 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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- 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
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