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CVE-2026-53410: CWE-367 Time-of-check time-of-use (TOCTOU) race condition in Zoom Communications Zoom Clients

0
High
VulnerabilityCVE-2026-53410cvecve-2026-53410cwe-367
Published: 07/16/2026 (07/16/2026, 21:11:44 UTC)
Source: CVE Database V5
Vendor/Project: Zoom Communications
Product: Zoom Clients

Description

CVE-2026-53410 is a high-severity vulnerability in Zoom Communications Zoom Clients for Windows involving a time-of-check to time-of-use (TOCTOU) race condition during installation and uninstallation. This flaw could allow an authenticated local user to escalate privileges on the affected system. The vulnerability has a CVSS 3.1 base score of 7.0, indicating significant impact on confidentiality, integrity, and availability. No specific affected versions or patch information are provided, and no known exploits are reported in the wild.

CVSS v3.1

Score 7.0high

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 07/16/2026, 21:32:27 UTC

Technical Analysis

This vulnerability is a TOCTOU race condition in the installation and uninstallation processes of certain Zoom Clients for Windows. It allows an authenticated local user to potentially escalate privileges by exploiting the timing window between checking and using resources during these processes. The CVSS vector indicates that the attack requires local access with high attack complexity and low privileges but no user interaction. The impact includes high confidentiality, integrity, and availability consequences. No vendor advisory or patch information is currently available, and affected versions are unspecified.

Potential Impact

An authenticated local user could exploit this race condition to escalate privileges, potentially gaining higher system rights than intended. This could lead to unauthorized access to sensitive information, modification of system or application data, and disruption of service availability on affected Windows systems running Zoom Clients.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix or mitigation is provided by Zoom Communications, restrict local user access to trusted individuals and monitor for unusual privilege escalation attempts. Avoid running installation or uninstallation processes in untrusted environments.

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Technical Details

Data Version
5.2
Assigner Short Name
Zoom
Date Reserved
2026-06-09T10:12:34.854Z
Cvss Version
3.1
State
PUBLISHED
Remediation Level
null

Threat ID: 6a594a9a68715ace43b94b9d

Added to database: 07/16/2026, 21:18:18 UTC

Last enriched: 07/16/2026, 21:32:27 UTC

Last updated: 07/17/2026, 02:10:39 UTC

Views: 9

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