CVE-2025-58133: Zoom Rooms Auth Bypass Vulnerability

CVE-2025-58133 Overview

CVE-2025-58133 is an authentication bypass vulnerability affecting Zoom Rooms Clients before version 6.5.1. This flaw may allow an unauthenticated user to conduct a disclosure of sensitive information via network access. The vulnerability is classified under CWE-288 (Authentication Bypass Using an Alternate Path or Channel), indicating that attackers can circumvent normal authentication mechanisms to gain unauthorized access to protected resources.

Critical Impact

Unauthenticated attackers can exploit this vulnerability remotely over the network to access sensitive information without valid credentials, potentially compromising confidential meeting data and organizational communications.

Affected Products

• Zoom Rooms for Android (versions before 6.5.1)
• Zoom Rooms for iPadOS (versions before 6.5.1)
• Zoom Rooms for iOS (versions before 6.5.1)
• Zoom Rooms for macOS (versions before 6.5.1)
• Zoom Rooms for Windows (versions before 6.5.1)

Discovery Timeline

• 2025-10-15 - CVE-2025-58133 published to NVD
• 2025-10-21 - Last updated in NVD database

Technical Details for CVE-2025-58133

Vulnerability Analysis

This authentication bypass vulnerability (CWE-288) exists in Zoom Rooms Clients where the authentication mechanism can be circumvented through an alternate path or channel. The vulnerability allows unauthenticated users to access protected resources that should require valid credentials.

The flaw enables remote attackers to bypass authentication controls entirely, providing direct access to sensitive information without proper authorization. This type of vulnerability typically occurs when an application provides multiple authentication paths but fails to consistently enforce security checks across all of them, or when certain endpoints or functions inadvertently expose data without requiring authentication.

Given the cross-platform nature of the affected software (Android, iPadOS, iOS, macOS, and Windows), organizations using Zoom Rooms in meeting spaces and conference rooms are at heightened risk of information disclosure if running vulnerable versions.

Root Cause

The root cause is an authentication bypass using an alternate path or channel (CWE-288). This vulnerability class occurs when software does not properly authenticate users when they access resources through an unprotected alternative pathway. In the context of Zoom Rooms Clients, this may involve API endpoints, service interfaces, or internal communication channels that fail to verify user identity before disclosing information.

Attack Vector

The attack vector is network-based, requiring no user interaction and no prior authentication. An attacker with network access to a vulnerable Zoom Rooms Client can exploit this flaw remotely. The attack does not require any privileges, making it accessible to any network-adjacent or remote attacker depending on the deployment configuration.

The exploitation scenario involves an attacker identifying a vulnerable Zoom Rooms Client on the network and leveraging the authentication bypass to access information that should be protected. This could include meeting details, configuration data, or other sensitive organizational information managed by the Zoom Rooms application.

For detailed technical information about this vulnerability, refer to the Zoom Security Bulletin ZSB-25039.

Detection Methods for CVE-2025-58133

Indicators of Compromise

• Unusual network connections to Zoom Rooms Clients from unauthorized IP addresses
• Unexpected API requests or authentication attempts to Zoom Rooms endpoints
• Access logs showing unauthenticated requests successfully retrieving protected resources
• Anomalous data transfer patterns from Zoom Rooms Client systems

Detection Strategies

• Monitor network traffic to and from Zoom Rooms devices for unusual patterns or unauthorized access attempts
• Implement network segmentation and audit access to Zoom Rooms Client systems
• Review application logs for authentication failures followed by successful data access
• Deploy endpoint detection and response (EDR) solutions to identify exploitation attempts on Zoom Rooms endpoints

Monitoring Recommendations

• Enable comprehensive logging on all Zoom Rooms Client installations
• Configure alerts for authentication anomalies and unauthorized access patterns
• Perform regular vulnerability assessments to identify unpatched Zoom Rooms Clients in the environment
• Monitor for Zoom security bulletins and apply updates promptly

How to Mitigate CVE-2025-58133

Immediate Actions Required

• Update all Zoom Rooms Clients to version 6.5.1 or later immediately
• Audit your environment to identify all instances of Zoom Rooms across platforms (Android, iPadOS, iOS, macOS, Windows)
• Restrict network access to Zoom Rooms devices until patches are applied
• Review access logs for any signs of prior exploitation

Patch Information

Zoom has addressed this vulnerability in Zoom Rooms Client version 6.5.1. Organizations should update to this version or later across all affected platforms (Android, iPadOS, iOS, macOS, and Windows). The official security advisory and patch details are available in the Zoom Security Bulletin ZSB-25039.

Workarounds

• Implement network segmentation to isolate Zoom Rooms devices from untrusted network segments
• Deploy firewall rules to restrict network access to Zoom Rooms Clients to authorized sources only
• Enable additional monitoring and logging on Zoom Rooms systems pending patch deployment
• Consider temporarily disabling Zoom Rooms services in high-security environments until patches are applied

Network administrators should ensure Zoom Rooms devices are placed on dedicated network segments with appropriate access controls while awaiting the update deployment.