CVE Daily

CVE-2025-34153

Hyland OnBase versions prior to 17.0.2.87 (other versions may be affected) are v...

Critical CVSS 10.0

Overview

Hyland OnBase versions prior to 17.0.2.87 (other versions may be affected) are vulnerable to unauthenticated remote code execution via insecure deserialization on the .NET Remoting TCP channel. The service registers a listener on port 6031 with the URI endpoint TimerServer, implemented in Hyland.Core.Timers.dll. This endpoint deserializes untrusted input using the .NET BinaryFormatter, allowing attackers to execute arbitrary code under the context of NT AUTHORITY\SYSTEM.

CWE: CWE-502 Published: 2025-08-13T17:15:27.663
Risk analysis

This vulnerability is rated 🔴 CRITICAL.

  • CVSS: 10.0 (CRITICAL)
  • Detected tags: deserialization, rce (tag impact: VERY HIGH)

Recommended actions:

  • Avoid untrusted deserialization; prefer safe formats (JSON) and signatures.
  • Patch/upgrade immediately (remote code execution).
  • Reduce exposure (WAF/segmentation), minimize attack surface.

Recommended tools

Tags