Zoom Workplace Apps Vulnerabilities: Critical Security Risks and Mitigation Strategies
Recent disclosures from Zoom Video Communications have highlighted multiple vulnerabilities affecting its Workplace Apps across various platforms, including Windows, macOS, Linux, iOS, and Android. These vulnerabilities pose significant risks such as privilege escalation, denial-of-service (DoS), and remote code execution, potentially allowing attackers to compromise user systems and data integrity. Among the most critical is a high-severity time-of-check time-of-use (TOCTOU) vulnerability (CVE-2025-30663), which stems from a race condition in Zoom Workplace applications. This flaw allows local users to exploit timing discrepancies between resource verification and usage, leading to unauthorized access to sensitive information and privilege escalation.
Other notable vulnerabilities include multiple NULL pointer dereference bugs (CVE-2025-30665, CVE-2025-30666, CVE-2025-30667, CVE-2025-30668) that could cause application crashes or allow attackers to execute arbitrary code. Additionally, a buffer over-read vulnerability (CVE-2025-46785) in Zoom Workplace Apps for Windows could expose sensitive memory contents or cause application instability. These vulnerabilities affect numerous Zoom products across multiple platforms, including the Zoom Workplace Desktop App for Windows, macOS, Linux, Virtual Desktop Infrastructure (VDI), Zoom Rooms Controllers and Clients, and the Zoom Meeting SDK.
Zoom has strongly recommended updating to the latest software versions to receive all security improvements. Security experts advise organizations to implement these patches promptly, especially in enterprise environments where privilege escalation vulnerabilities pose significant risks to network integrity and data confidentiality. Users can download the latest Zoom updates from the company’s official download page or enable automatic updates through application settings to ensure continued protection against emerging threats.
Threats and Vulnerabilities
The TOCTOU vulnerability (CVE-2025-30663) in Zoom Workplace Apps is a high-severity flaw that allows local users to exploit timing discrepancies between resource verification and usage. This vulnerability can lead to unauthorized access to sensitive information and privilege escalation on targeted systems. Although exploitation requires local system access and authentication credentials, the potential impact remains significant for enterprise environments.
Multiple NULL pointer dereference vulnerabilities (CVE-2025-30665, CVE-2025-30666, CVE-2025-30667, CVE-2025-30668) in Zoom Workplace Apps could cause application crashes or allow attackers to execute arbitrary code. These vulnerabilities affect all platforms and could lead to denial-of-service (DoS) or remote code execution if exploited.
The buffer over-read vulnerability (CVE-2025-46785) in Zoom Workplace Apps for Windows allows attackers to read sensitive memory contents, leading to crashes or data exposure. This vulnerability poses a risk of exposing sensitive information and causing application instability.
Improper neutralization of special elements (CVE-2025-30664) allows attackers to inject malicious inputs via unvalidated user data, potentially bypassing security controls. This vulnerability affects all platforms and could be exploited to compromise system integrity.
Client Impact
The identified vulnerabilities in Zoom Workplace Apps could lead to significant operational disruptions for clients. Exploitation of these vulnerabilities may result in unauthorized access to sensitive data, privilege escalation, and potential data breaches. The financial consequences of such incidents could be substantial, including costs associated with incident response, remediation, and potential regulatory fines.
Reputation damage is another critical concern, as clients may lose trust in organizations that fail to protect their data adequately. Additionally, these vulnerabilities could lead to regulatory compliance issues, particularly for industries subject to strict data protection regulations. Organizations may face audits or penalties if they fail to address these security risks promptly.
Mitigations
To mitigate the identified risks associated with Zoom Workplace Apps vulnerabilities, clients should consider the following actions:
- Update all Zoom Workplace Apps to the latest software versions available on the official download page to receive security improvements.
- Enable automatic updates through application settings to ensure continued protection against emerging threats.
- Conduct regular security assessments and vulnerability scans to identify and address potential weaknesses in your systems.
- Implement robust access controls and authentication mechanisms to limit unauthorized access to sensitive information.
- Educate employees about the importance of cybersecurity hygiene and encourage them to report any suspicious activity promptly.
By taking these steps, organizations can significantly reduce their exposure to the identified vulnerabilities and enhance their overall security posture. It is crucial for clients to remain vigilant and proactive in addressing potential security risks to protect their systems and data effectively.
1898 & Co .Response
1898 & Co. is actively addressing the current threat landscape by offering specialized services designed to help clients mitigate emerging threats like those affecting Zoom Workplace Apps. Our team provides tailored security assessments and vulnerability management solutions that align with industry standards and best practices. We are focused on delivering comprehensive threat intelligence services that keep our clients informed about the latest cybersecurity developments.
We are collaborating with industry allies and government agencies to enhance our threat intelligence capabilities and provide clients with timely insights into potential risks. Our ongoing research efforts are dedicated to identifying new attack vectors and developing effective mitigation strategies that address the unique challenges faced by our clients.
Our case studies demonstrate successful mitigations of similar vulnerabilities across various industries, showcasing our ability to deliver effective security solutions that protect client assets. By leveraging our expertise and resources, 1898 & Co aims to support clients in navigating the complex cybersecurity landscape with confidence.