dbcve.org
Meeting Software Development KitApplication · Zoom

CVE-2026-53408

HIGH · 8.1 CVSS v3.1 Published 2026-06-12
Fix available
A fix is available. Upgrade to 7.0.3 / 7.0.4 or later.
See remediation →
87/100
Remediation priority · High
Remotely reachable Zero-click

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 · unedited
Improper Authorization in Handler for Custom URL Scheme in Zoom Workplace before version 7.0.4 for Android and before 7.0.3 for iOS may allow an unauthenticated user to conduct an escalation of privilege 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 confidence

Improper authorization in the custom URL scheme handler in Zoom Workplace mobile apps (Android before 7.0.4, iOS before 7.0.3) allows unauthenticated attackers to trigger privileged operations via specially crafted URLs, potentially achieving escalation of privilege through network access.

MitigationUpdate Zoom Workplace to version 7.0.4 or later on Android and version 7.0.3 or later on iOS to remediate the improper authorization vulnerability in the custom URL scheme handler.

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
Meeting Software Development KitApplication
Affected:< 7.0.3< 7.0.4
WorkplaceApplication
Affected:< 7.0.3< 7.0.4

CVSS 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
High
Availability
None

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

Work through these to decide whether this CVE applies to you.

  1. Identify Zoom Workplace app on Android
    Open Android Settings > Apps > Zoom Workplace and note the version number shown in the App info screen
    Affected if Version is displayed as less than 7.0.4 (for example, 7.0.3, 7.0.2, etc.)
  2. Identify Zoom Workplace app on iOS
    Open iOS Settings > Zoom Workplace (or Zoom) and check the version field under the app name
    Affected if Version is displayed as less than 7.0.3 (for example, 7.0.2, 7.0.1, etc.)
  3. Check for Zoom Meeting SDK in mobile apps
    If you built or maintain a mobile app, review your project dependencies or build configuration (Gradle for Android, CocoaPods/Swift Package Manager for iOS) to confirm if Zoom Meeting SDK is included
    Affected if The SDK version included is less than 7.0.3 for iOS or less than 7.0.4 for Android and your app handles custom URL schemes
  4. Confirm custom URL scheme handling is active
    For any app using Zoom SDK, examine the app manifest (Android) or Info.plist (iOS) for URL scheme registrations such as zoommtg:// or zoomus://
    Affected if URL scheme handlers are registered and the Zoom component version is below the fixed releases

You are affected if Zoom Workplace mobile app is installed at a version below 7.0.4 on Android or below 7.0.3 on iOS, or if your app embeds Zoom Meeting SDK below these respective version thresholds and registers Zoom URL schemes.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Upgrade available Upgrade to 7.0.3 / 7.0.4 or later
Fixed in 7.0.37.0.4
Interim mitigation

Update Zoom Workplace to version 7.0.4 or later on Android and version 7.0.3 or later on iOS to remediate the improper authorization vulnerability in the custom URL scheme handler.

Recommended fix High confidence

Zoom Workplace 7.0.4 (Android) / 7.0.3 (iOS) or later

  1. 1. For Android devices: Navigate to the Google Play Store and update Zoom Workplace to version 7.0.4 or later
  2. 2. For iOS devices: Navigate to the Apple App Store and update Zoom Workplace to version 7.0.3 or later
  3. 3. Alternatively, download the latest version from the official Zoom website (www.zoom.com) to ensure you have the patched release
  4. 4. After updating, verify the installed version matches or exceeds the minimum required version (7.0.4 for Android, 7.0.3 for iOS)

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Meeting Software Development Kit Scoped from the published advisory
  • Consultation3.0 h
  • Implementation1.0 h
  • Testing4.0 h
  • Review / QA2.0 h
10.0 hours of engineering $1,740
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,784.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-53408 in production — separate from our analysis above.

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What this is

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.

What belongs here
  • 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