CVE-2025-49459 in Workplace
Summary
by MITRE • 09/10/2025
Missing authorization in the installer for Zoom Workplace for Windows on ARM before version 6.5.0 may allow an authenticated user to conduct an escalation of privilege via local access.
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Analysis
by VulDB Data Team • 09/11/2025
The vulnerability identified as CVE-2025-49459 represents a critical authorization flaw within the Zoom Workplace installer for Windows on ARM systems. This issue affects versions prior to 6.5.0 and stems from inadequate permission controls during the installation process. The flaw specifically manifests when an authenticated user with local access attempts to escalate their privileges through the installer component, bypassing normal security boundaries that should prevent unauthorized privilege elevation.
The technical root cause of this vulnerability lies in the installer's failure to properly validate user permissions and authorization levels during the installation process. This missing authorization check creates a pathway for privilege escalation where an authenticated user can manipulate the installation flow to gain elevated system privileges. The vulnerability is particularly concerning because it affects Windows on ARM architecture, which presents unique security considerations due to the different execution environments and privilege models compared to traditional x86 systems. The flaw operates at the installer level where proper access controls should enforce that only authorized users or processes can initiate privileged installation operations.
The operational impact of this vulnerability extends beyond simple privilege escalation as it represents a significant security weakness that could enable attackers to gain unauthorized access to system resources. An authenticated user with local access could leverage this vulnerability to install malicious software, modify system configurations, or establish persistent access mechanisms. The implications are particularly severe in enterprise environments where Zoom Workplace is commonly deployed, as this could provide attackers with a foothold to expand their access within the network. The vulnerability affects the integrity and confidentiality of the system by allowing unauthorized privilege elevation through legitimate installation paths.
Security professionals should approach this vulnerability with immediate concern given its potential for privilege escalation and the fact that it affects a widely deployed collaboration platform. The remediation strategy must focus on updating to Zoom Workplace version 6.5.0 or later, which includes proper authorization checks in the installer component. Organizations should also implement additional monitoring for unauthorized installation activities and privilege escalation attempts. From a compliance perspective, this vulnerability could impact requirements under frameworks such as iso 27001 and nist cybersecurity framework, particularly in areas related to access control and privilege management. The vulnerability aligns with CWE-284 which addresses improper access control, and could be mapped to ATT&CK technique T1068 which covers exploit for privilege escalation. Organizations should also consider implementing application whitelisting and least privilege principles to mitigate the risk of exploitation even if the primary fix is not immediately available.