CVE-2026-25550

Seagull Software BarTender 2010, 2016, and 2019 contain an unauthenticated remote code execution vulnerability in the .NET Remoting service exposed on TCP port 7375 via BtSystem.Service.exe. The service registers an unauthenticated singleton endpoint — BarTenderSystem for BarTender 2016 = R9, and...

CVE-2026-25551 Seagull Software BarTender Deserialization Privilege Escalation via .NET Remoting Service

Seagull Software BarTender 2021 R1 through 12.0.1 contains an insecure deserialization vulnerability that allows low-privileged local users to escalate privileges. The DataServiceSingleton .NET Remoting endpoint is bound to localhost on TCP port 7375 via BtSystem.Service.exe, limiting the attack...

CVE-2026-25550

Seagull Software BarTender 2010, 2016, and 2019 expose an unauthenticated .NET Remoting service on TCP port 7375 (BtSystem.Service.exe). BarTenderSystem (BarTender 2016 ≤ R9) and DataServiceSingleton (BarTender 2019 ≤ R10) are registered as unauthenticated singleton endpoints configured with Bina...

PT-2026-46298

Seagull Software BarTender 2021 R1 through 12.0.1 contains an insecure deserialization vulnerability that allows low-privileged local users to escalate privileges. The DataServiceSingleton .NET Remoting endpoint is bound to localhost on TCP port 7375 via BtSystem.Service.exe, limiting the attack...