Barracuda RMM < 2025.1.1 Service Center .NET Remoting Deserialization RCE

Advisories

severity: critical
date: December 10, 2025
Affecting: RMM < 2025.1.1
CVE: CVE-2025-34394
CWE: CWE-502 Deserialization of Untrusted Data
CVSS: 10
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
References: Barracuda RMM Vendor Advisory
Barracuda RMM Product Webpage
Credit: Piotr Bazydlo of watchTowr
Description: Barracuda Service Center, as implemented in the RMM solution, in versions prior to 2025.1.1, exposes a .NET Remoting service that is insufficiently protected against deserialization of arbitrary types. This can lead to remote code execution.