CVE-2025-49461
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 · uneditedCross-site scripting in certain Zoom Workplace Clients may allow an unauthenticated user to conduct 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 · moderate confidenceCross-site scripting (XSS) vulnerability in Zoom Workplace Clients allows unauthenticated attackers to inject malicious scripts via network access, potentially causing denial of service conditions.
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< 6.5.0< 6.5.0< 6.5.0< 6.5.0< 6.5.0< 6.3.14>= 6.4.0, < 6.4.12CVSS 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
- Required
- Scope
- Changed
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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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Check Zoom Workplace Desktop versionOpen Zoom app, click your profile picture, select 'Check for Updates' or view About section to see version numberAffected if Version is less than 6.5.0
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Check Zoom Meeting SDK versionInspect the SDK version in your application's dependencies or check the DLL/file version of ZoomSDK.dll if deployed locallyAffected if Version is less than 6.5.0
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Check Zoom Rooms versionOn Zoom Room controller or admin portal, navigate to Room Management > Zoom Rooms and view the version columnAffected if Version is less than 6.5.0
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Check Zoom Rooms Controller versionOpen the Zoom Rooms Controller app, go to Settings > About to view the versionAffected if Version is less than 6.5.0
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Check Zoom Workplace versionOpen Zoom Workplace client, click profile icon and select 'About Zoom Workplace' to see versionAffected if Version is less than 6.5.0
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Check Zoom Workplace VDI versionVerify the VDI client or virtual desktop image version through your VDI administrator console or by checking the installed Zoom VDI package versionAffected if Version is less than 6.3.14 OR (version >= 6.4.0 AND version < 6.4.12)
Any installed version of Zoom Workplace Client, SDK, Rooms, or VDI below 6.5.0 (or VDI below 6.3.14 or between 6.4.0-6.4.11) is affected by this XSS vulnerability.
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 · scoped6.3.146.4.126.5.0
Update Zoom Workplace Clients to the latest patched version to remediate this vulnerability.
6.5.0 for most products; 6.3.14 or 6.4.12 for Workplace VDI depending on current branch
- Identify the specific Zoom product in use (Workplace Desktop, Meeting SDK, Rooms, Rooms Controller, Workplace, or Workplace VDI)
- Determine the current installed version via Zoom client or system information
- For Workplace Desktop, Meeting SDK, Rooms, Rooms Controller, or Workplace: upgrade to version 6.5.0 or later
- For Workplace Virtual Desktop Infrastructure: if currently on 6.3.x, upgrade to 6.3.14 or later; if currently on 6.4.x, upgrade to 6.4.12 or later
- After upgrade, verify the installed version matches the fixed release
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-49461 — 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-2025-49461 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