CVE-2025-46785 is a medium-severity vulnerability identified in some Zoom Workplace Apps for Windows. The issue arises from a buffer over-read that could potentially allow authenticated users to conduct a denial of service through network access. With a CVSS score of 6.5, this vulnerability poses a moderate risk to organizations utilizing affected Zoom components.
Risk to organizations includes potential service disruptions that could impact business continuity, especially for users relying on Zoom for meetings and collaboration. Given the nature of this vulnerability, it is crucial for organizations to address the issue promptly to ensure uninterrupted service availability.
Currently, there are no known exploits in the wild for this vulnerability, but it is categorized as having a medium level of exploitability. Therefore, organizations should prioritize patching immediately to protect their systems from potential threats.
As this vulnerability can affect multiple components of Zoom's offerings, including the meeting software development kit and workplace applications, organizations should ensure that all instances are updated to the latest versions to mitigate risks.
Vulnerability Details
The vulnerability is formally described as a buffer over-read in some Zoom Workplace Apps for Windows, which can lead to a denial of service. This issue is categorized under CWE-120, indicating a buffer-related weakness. The vulnerability was published on May 14, 2025, and impacts multiple Zoom products, including the meeting software development kit, rooms, rooms controller, workplace desktop, and workplace virtual desktop infrastructure.
The CVSS vector for this vulnerability is CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H, reflecting a network attack vector, low attack complexity, low privileges required, no user interaction needed, and a high impact on availability.
Technical Analysis
The root cause of CVE-2025-46785 is a buffer over-read, which occurs when the application attempts to read more data than is available. Attackers may leverage this vulnerability by sending specially crafted requests that exploit this flaw, resulting in a denial of service. The attack vector is network-based, meaning that an attacker can exploit this vulnerability remotely, making it easier for an attacker to target affected systems.
The attack complexity is classified as low, and only low privileges are required for exploitation. Additionally, no user interaction is necessary, further increasing the risk. The impact on confidentiality and integrity is none, but the availability impact is high, which could result in significant disruptions for users.
Risk & Impact Analysis
Organizations using affected Zoom products face a real-world risk of service interruption due to CVE-2025-46785. The ability for an authenticated user to cause a denial of service can lead to significant disruptions in communication and collaboration, essential functions for many businesses today.
The urgency to address this vulnerability is moderate, given its CVSS score of 6.5. Organizations should schedule remediation in their priority patch cycle to minimize the potential impact.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The following Zoom components are affected by CVE-2025-46785: meeting software development kit, rooms, rooms controller, workplace desktop, and workplace virtual desktop infrastructure. All versions prior to vendor patch, specifically those before version 6.4.0 for components except for the workplace virtual desktop infrastructure, which is affected in versions before 6.1.17 and between 6.1.18 to 6.2.13, and 6.2.14 to 6.3.10.
Mitigation & Remediation
Organizations should prioritize patching immediately by upgrading to the latest versions of affected Zoom products. Specific updates should include moving to version 6.4.0 or higher for the meeting software development kit, rooms, and rooms controller, and ensuring workplace desktop and workplace virtual desktop infrastructure are also updated accordingly.
In cases where immediate patching is not feasible, organizations should consider implementing network controls to limit access to affected systems and monitor for any unusual activity that may indicate exploitation attempts.
For further assistance with vulnerability management, organizations may consider employing penetration testing services to validate their security posture.
Detection Guidance
To detect potential exploitation attempts related to CVE-2025-46785, organizations should monitor logs for unusual access patterns, particularly from authenticated users. Behavioral anomalies, such as unexpected service interruptions or crashes in Zoom applications, may also indicate attempts to exploit this vulnerability.
Network signatures that identify unusual traffic patterns to and from affected Zoom components can help in early detection of potential attacks.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-46785 lies in its demonstration of how buffer over-read vulnerabilities can lead to denial of service in widely used applications. This trend highlights the importance of robust software development practices and ongoing security assessments.
Security teams should take this as an opportunity to enhance their vulnerability management programs and ensure that their software development life cycles include rigorous security testing. For more insights into best practices, organizations can refer to resources on vulnerability management and penetration testing methodology to better secure their environments.
Ultimately, addressing vulnerabilities like CVE-2025-46785 is essential for maintaining service reliability and protecting organizational assets from potential disruption.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)