CVE-2023-36532
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 · uneditedBuffer overflow in Zoom Clients before 5.14.5 may allow an unauthenticated user to enable a denial of service via network access.
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 confidenceA buffer overflow vulnerability in Zoom client software versions prior to 5.14.5 allows an unauthenticated attacker on the network to trigger a denial of service condition by sending specially crafted network traffic to the vulnerable client.
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< 5.14.5< 5.14.5< 5.14.5CVSS 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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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 installed Zoom productOpen the Zoom application and navigate to Help > About Zoom, or check the installed programs list in your system's control panel to determine if Zoom Client, Zoom Rooms, or Zoom VDI is installedAffected if Any of these three Zoom products are installed (Zoom Client, Zoom Rooms, or Zoom VDI)
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Determine installed version numberIn the Zoom application, go to Help > About Zoom and note the version number displayed (format typically shows as 5.x.x). Alternatively, check the Windows Programs and Features list, macOS Applications folder, or Linux package manager for the installed Zoom package versionAffected if A version number is found that is less than 5.14.5, or the version cannot be determined and the product is known to be installed
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Verify network connectivity is enabledConfirm that the Zoom client has network connectivity enabled and is configured to receive incoming connections or meetings. Check Zoom settings under Settings > General or Settings > Video to confirm the client is operational and connected to Zoom servicesAffected if The Zoom client is running with network connectivity, as the vulnerability is triggered by specially crafted network traffic sent to the client
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Confirm version is within vulnerable rangeCompare the identified version number against the affected range: any version prior to 5.14.5 (including 5.14.0 through 5.13.x and earlier) is vulnerable. Version 5.14.5 and later are patchedAffected if The installed version is below 5.14.5 (for example, 5.13.10, 5.12.5, etc.)
You are affected if any Zoom product (Client, Rooms, or VDI) is installed with a version number less than 5.14.5 and the application has network connectivity enabled.
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 · scoped5.14.5
Update Zoom Clients to version 5.14.5 or later to remediate this vulnerability.
Zoom Client 5.14.5 or later (for Rooms, VDI, and standard Zoom Client)
- Download Zoom Client version 5.14.5 or later from the official Zoom website (explore.zoom.us)
- For Zoom Rooms, update the Rooms client to version 5.14.5 or later
- For Virtual Desktop Infrastructure users, update the VDI client to version 5.14.5 or later
- Restart the Zoom client after updating to ensure the new version is fully applied
- Verify the installed version matches or exceeds 5.14.5
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-36532 — 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-2023-36532 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
- No spam, self-promotion, credentials, or personal data