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CVE-2025-34153

Published Aug 13, 2025 CWE-502 EPSS 0.65% (49th pctl)

Overview

CVE-2025-34153 is a known-severity vulnerability. It was published on August 13, 2025.

Technical Description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Ref community.hyland.com/resources/bulletins-and-notices/210540-security-update-hyland-timer-service-bulletin-ob2025-02 GitHub gist.github.com/VAMorales/32794cccc2195a935623a12ef32760dc Ref support.hyland.com/r/OnBase/WorkView/Foundation-24.1/WorkView/Installation/Upgrade-Considerations/Upgrading-to-OnBase-Version-Foundation-24.1 Ref www.hyland.com/en/internal/onbase-unity-client Ref www.vulncheck.com/advisories/hyland-onbase-net-remoting-tcp-channel-unauthenticated-rce

Frequently Asked Questions

What is CVE-2025-34153?

CVE-2025-34153 is a known-severity vulnerability. It was published on August 13, 2025.

How severe is CVE-2025-34153?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2025-34153?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-34153?

CyberStrike's AI-powered security agents can automatically detect CVE-2025-34153 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

How CyberStrike Helps

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