Critical Vulnerabilities Discovered in Synology Chat Server for DSM

Multiple vulnerabilities were discovered in Synology Chat Server for DSM on June 4, 2026. These flaws allow attackers to remotely trigger a denial of service, compromise data confidentiality, and undermine data integrity. The affected product is specifically Synology Chat Server, a component of the DiskStation Manager (DSM) platform. No specific CVE identifiers, technical details, or affected version numbers were provided in the notice. The reported impacts include disruption of service, unauthorized data access, and tampering with data.