CVE-2025-49457 in Workplace
Summary
by MITRE • 08/13/2025
Untrusted search path in certain Zoom Clients for Windows may allow an unauthenticated user to conduct an escalation of privilege via network access
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Analysis
by VulDB Data Team • 09/08/2025
The vulnerability identified as CVE-2025-49457 represents a critical security flaw within certain versions of Zoom Clients for Windows operating systems. This issue stems from an insecure handling of the application's search path mechanism, which creates a dangerous condition where untrusted code can be executed with elevated privileges. The flaw specifically affects the client-side software used for video conferencing and communication services, making it a significant concern for organizations relying on Zoom for their collaborative infrastructure.
The technical root cause of this vulnerability lies in the improper implementation of the Windows search path resolution process within the Zoom client application. When the application attempts to locate and load required libraries or executables, it does not properly validate or sanitize the search path components. This allows an attacker who has network access to manipulate the system's library loading sequence by placing malicious binaries in directories that are searched before the legitimate application components. The vulnerability is classified as a privilege escalation issue under CWE-427, which specifically addresses uncontrolled search path elements that can lead to code injection and unauthorized privilege elevation.
From an operational perspective, this vulnerability presents a severe risk to enterprise environments where Zoom clients are widely deployed. An unauthenticated attacker with network access to a victim's machine can exploit this flaw to execute arbitrary code with the privileges of the running Zoom process. Since many Zoom clients operate with elevated permissions to facilitate features such as screen sharing and audio device management, the potential for privilege escalation is particularly dangerous. The attack vector requires only network access, making it accessible to remote adversaries without requiring physical access or prior authentication credentials. This aligns with ATT&CK technique T1068 which covers the exploitation of local privilege escalation vulnerabilities.
The impact of this vulnerability extends beyond simple code execution as it can enable attackers to establish persistent access, escalate privileges to system-level access, and potentially compromise entire network infrastructures. Organizations may experience unauthorized data access, system takeover, and potential lateral movement within their networks. The vulnerability is particularly concerning because it affects widely deployed client software, meaning that a successful exploitation could impact thousands of endpoints simultaneously. Security professionals should consider this vulnerability as a high-priority threat requiring immediate attention and remediation.
Mitigation strategies for CVE-2025-49457 should include immediate deployment of vendor-provided patches and updates to address the untrusted search path implementation. Organizations should implement network segmentation to limit unnecessary access to Zoom client systems and consider deploying application whitelisting policies that restrict the execution of unauthorized binaries. System administrators should also monitor for suspicious file creation patterns in directories commonly used in the search path and implement proper access controls to prevent unauthorized modifications. Additionally, security teams should conduct thorough vulnerability assessments to identify all affected Zoom client installations and ensure that proper security configurations are applied to prevent exploitation of this privilege escalation vulnerability.