Improper Version Check in Zoom Clients for Windows Allows Privilege Escalation
CVE-2026-30900

7.8HIGH

Key Information:

Vendor

Zoom
Status
Zoom Workplace
Vendor
CVE Published:
11 March 2026

What is CVE-2026-30900?

An improper check of the minimum version in the update functionality of certain Zoom Clients for Windows may allow an authenticated user to escalate their privileges via local access. This vulnerability can be exploited by leveraging the existing permissions of an authenticated user, resulting in unauthorized actions within the application. It is crucial for users and administrators of Zoom for Windows to recognize and address this issue to safeguard against potential security breaches.

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Affected Version(s)

Zoom Workplace Windows 6.6.0 < 6.6.11

References

https://www.zoom.com/en/trust/security-bulletin/zsb-26002

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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