This vulnerability in Synology Assistant arises from improper origin validation, enabling local users to write arbitrary files that may contain restricted content. Additionally, it can lead to denial-of-service conditions during the software installation process. The issue affects versions prior to 7.0.6-50085. The CVSS 3.1 base score is 6.1, reflecting a medium severity with local attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, no confidentiality impact, limited integrity impact, and high availability impact.

The vulnerability allows local attackers to write arbitrary files, which can compromise system integrity by modifying or injecting restricted content. It also enables denial-of-service attacks during installation, potentially disrupting normal operations. There is no impact on confidentiality. No known active exploitation has been reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict local user access to trusted personnel only and avoid running installation processes in untrusted environments. Monitor Synology's official channels for updates regarding patches or mitigations.