---
title: "Güralp Systems Vulnerability Exposes Devices to DoS Attacks (CVE-2025-14466)"
short_title: "Güralp Systems devices at risk of DoS attacks"
description: "Critical vulnerability CVE-2025-14466 in Güralp Fortimus, Minimus, and Certimus series could allow unauthenticated attackers to cause denial-of-service conditions. Learn mitigation steps now."
author: "Vitus"
date: 2025-01-24
categories: [Cybersecurity, Vulnerabilities]
tags: [cve-2025-14466, denial-of-service, güralp-systems, ics-security, vulnerability]
score: 0.65
cve_ids: [CVE-2025-14466]
---
TL;DR
A critical vulnerability (CVE-2025-14466) in Güralp Systems Fortimus, Minimus, and Certimus series allows unauthenticated attackers to trigger denial-of-service (DoS) conditions by sending specially crafted HTTP requests. While the impact is limited to temporary service disruption, organizations using these devices are urged to implement mitigation measures immediately.
---
Main Content
Critical Vulnerability in Güralp Systems Devices Highlights Risks to Industrial Control Systems
A newly disclosed vulnerability in Güralp Systems Fortimus, Minimus, and Certimus series could expose critical infrastructure to denial-of-service (DoS) attacks. Identified as CVE-2025-14466, this flaw allows unauthenticated attackers with network access to disrupt operations by forcing the web service process to restart. While the impact is mitigated by automatic recovery mechanisms, the vulnerability poses risks to organizations relying on these devices for seamless operations.
---
Key Points
- Vulnerability ID: CVE-2025-14466 (CVSS 5.3, Medium Severity)
- Affected Products: Güralp Systems Fortimus, Minimus, and Certimus series (all versions)
- Attack Vector: Unauthenticated HTTP requests targeting the web interface
- Impact: Temporary denial-of-service (DoS) condition during web service restart
- Mitigation: Operate devices behind a NAT or VPN firewall and restrict network exposure
---
Technical Details
#### Vulnerability Overview
CVE-2025-14466 is classified as an Allocation of Resources Without Limits or Throttling vulnerability (CWE-770). The flaw resides in the web interface of Güralp Systems devices, where an attacker can send specially crafted HTTP requests to trigger a deliberate restart of the web service process. Although the system recovers automatically, the brief disruption can impact operations, particularly in critical manufacturing sectors.
#### CVSS Metrics
The vulnerability has been assigned a CVSS v3.1 base score of 5.3 (Medium Severity) with the following vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Attack Vector (AV): Network
- Attack Complexity (AC): Low
- Privileges Required (PR): None
- User Interaction (UI): None
- Scope (S): Unchanged
- Impact: Low availability impact, no confidentiality or integrity impact
---
Impact Assessment
#### Affected Sectors
- Critical Manufacturing: Güralp Systems devices are widely deployed in critical manufacturing environments, where operational continuity is paramount.
- Global Reach: The vulnerability affects devices deployed worldwide, increasing the potential attack surface.
#### Risk Analysis
While the vulnerability does not allow for data exfiltration or remote code execution, the ability to disrupt services poses significant risks:
- Operational Downtime: Temporary DoS conditions can halt critical processes, leading to financial or operational losses.
- Exploitation Ease: The attack requires no authentication or user interaction, making it accessible to low-skilled threat actors.
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Mitigation Steps
Güralp Systems has recommended the following measures to reduce the risk of exploitation:
1. Network Isolation:
- Operate affected devices behind a NAT or VPN firewall to limit exposure to untrusted networks.
- Restrict access to the web interface to authorized personnel only.
2. Defensive Measures:
- Minimize network exposure for all control system devices by ensuring they are not accessible from the internet.
- Locate control system networks and remote devices behind firewalls and isolate them from business networks.
- Use secure remote access methods such as Virtual Private Networks (VPNs) and ensure they are updated to the latest version.
3. Monitoring and Response:
- Monitor network traffic for suspicious HTTP requests targeting Güralp Systems devices.
- Follow CISA’s recommended practices for control systems security and incident response.
For further guidance, users are advised to contact Güralp Systems support or refer to CISA’s ICS advisory.
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Affected Systems
The following Güralp Systems devices are confirmed to be affected by CVE-2025-14466:
- Fortimus Series (all versions)
- Minimus Series (all versions)
- Certimus Series (all versions)
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Conclusion
The discovery of CVE-2025-14466 underscores the importance of proactive cybersecurity measures in protecting industrial control systems. While the vulnerability’s impact is limited to temporary service disruption, organizations must act swiftly to implement network isolation and defensive strategies to prevent exploitation.
As threats to critical infrastructure continue to evolve, staying informed about vulnerabilities and adhering to best practices for ICS security is essential. CISA’s recommendations provide a strong foundation for mitigating risks and ensuring the resilience of operational technologies.
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References
[^1]: CISA. "[ICSA-25-350-01: Güralp Systems Fortimus, Minimus, and Certimus Series](https://www.cisa.gov/news-events/ics-advisories/icsa-25-350-01)". Retrieved 2025-01-24.
[^2]: NIST. "[CVE-2025-14466 Detail](https://nvd.nist.gov/vuln/detail/CVE-2025-14466)". Retrieved 2025-01-24.
[^3]: MITRE. "[CWE-770: Allocation of Resources Without Limits or Throttling](https://cwe.mitre.org/data/definitions/770.html)". Retrieved 2025-01-24.