---
title: "Critical Flaws in Weintek cMT X HMI: Low-Level Users Can Seize Full Control"
short_title: "Weintek cMT X HMI critical vulnerabilities exposed"
description: "Two high-severity vulnerabilities in Weintek cMT X Series HMI EasyWeb Service allow low-privileged users to escalate privileges and gain full device control. Patch now."
author: "Vitus"
date: 2025-01-24
categories: [Cybersecurity, Vulnerabilities]
tags: [weintek, hmi, cve-2025-14750, cve-2025-14751, privilege-escalation]
score: 0.85
cve_ids: [CVE-2025-14750, CVE-2025-14751]
---
TL;DR
Two critical vulnerabilities (CVE-2025-14750 and CVE-2025-14751) in Weintek cMT X Series HMI EasyWeb Service enable low-privileged users to escalate privileges and gain full control of affected devices. Weintek has released patches for all impacted models, and users are urged to update immediately to mitigate risks.
---
Main Content
Critical Vulnerabilities Expose Weintek cMT X Series HMI to Privilege Escalation Attacks
Weintek’s cMT X Series HMI EasyWeb Service, a widely used human-machine interface (HMI) in critical manufacturing sectors, has been found vulnerable to two high-severity flaws. If exploited, these vulnerabilities could allow low-level users to bypass authentication and seize full control of affected devices, posing significant risks to industrial operations worldwide.
---
Key Points
- Two high-severity vulnerabilities (CVE-2025-14750 and CVE-2025-14751) affect multiple Weintek cMT X Series HMI models.
- Low-privileged users can exploit these flaws to escalate privileges and gain full device control.
- Affected models include cMT3072XH, cMT3072XH(T), cMT-SVRX-820, and cMT-CTRL01.
- Patches are available for all vulnerable versions, and users are advised to update immediately.
- No known public exploitation has been reported to CISA at this time.
---
Technical Details
#### Vulnerability Breakdown
1. CVE-2025-14750: External Control of Assumed-Immutable Web Parameter
- The web application fails to sufficiently verify inputs assumed to be immutable but are externally controllable.
- A low-privileged user can manipulate parameters to alter account-level privileges, leading to unauthorized access.
- CVSS Score: 8.3 (High)
- Vector String: [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L](https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L)
- Relevant CWE: [CWE-472: External Control of Assumed-Immutable Web Parameter](https://cwe.mitre.org/data/definitions/472.html)
2. CVE-2025-14751: Unverified Password Change
- A low-privileged user can bypass account credentials without verifying the user’s current authentication state.
- This flaw enables unauthorized privilege escalation, allowing attackers to gain full control of the device.
- CVSS Score: 8.3 (High)
- Vector String: [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L](https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L)
- Relevant CWE: [CWE-620: Unverified Password Change](https://cwe.mitre.org/data/definitions/620.html)
---
#### Affected Products and Versions
The following Weintek cMT X Series HMI models and versions are impacted:
| Model | Affected Versions | Patched Version |
|--------------------|-------------------------------------|---------------------|
| cMT3072XH | ≥20200630, <20241112 | 20241112 |
| cMT3072XH(T) | ≥20200630, <20241112 | 20241112 |
| cMT-SVRX-820 | ≥20220413, <20240919 | 20240919 |
| cMT-CTRL01 | ≥20230308, <20250827 | 20250827 |
---
Impact Assessment
The vulnerabilities pose a severe risk to industrial environments, particularly in critical manufacturing sectors where Weintek HMI devices are widely deployed. Successful exploitation could lead to:
- Unauthorized access to sensitive industrial systems.
- Disruption of manufacturing processes due to compromised device control.
- Potential lateral movement within networks, leading to broader security breaches.
Given the global deployment of these devices, organizations must prioritize patching to prevent potential attacks.
---
Mitigation Steps
Weintek has released patches for all affected models. Users are strongly advised to:
1. Update to the latest firmware versions immediately:
- cMT3072XH: Version 20241112
- cMT3072XH(T): Version 20241112
- cMT-SVRX-820: Version 20240919
- cMT-CTRL01: Version 20250827
2. Minimize network exposure for control system devices to reduce attack surfaces.
3. Isolate control system networks behind firewalls and segment them from business networks.
4. Use secure remote access methods, such as VPNs, and ensure they are updated to the latest versions.
5. Monitor for suspicious activity and report any incidents to CISA for further investigation.
For more details, refer to Weintek’s official notice: [TEC25003E_cMT_EasyWeb_V2_Security_Issues.pdf](https://dl.weintek.com/public/Document/TEC/TEC25003E_cMT_EasyWeb_V2_Security_Issues.pdf).
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Recommended Practices for Industrial Control Systems (ICS)
CISA recommends the following best practices to enhance the security of ICS environments:
- Implement a defense-in-depth strategy to protect critical assets.
- Regularly update and patch all control system devices.
- Conduct risk assessments before deploying defensive measures.
- Educate employees on recognizing and avoiding phishing and social engineering attacks.
- Refer to CISA’s ICS resources for additional guidance:
- [ICS Cybersecurity Best Practices](https://www.cisa.gov/ics)
- [Targeted Cyber Intrusion Detection and Mitigation Strategies](https://www.cisa.gov/resources-tools/services/ics-tip-12-146-01b-targeted-cyber-intrusion-detection-and-mitigation-strategies)
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Conclusion
The discovery of CVE-2025-14750 and CVE-2025-14751 in Weintek’s cMT X Series HMI devices underscores the critical importance of securing industrial control systems against privilege escalation attacks. While no active exploitation has been reported, the high severity of these flaws demands immediate action from organizations using affected models.
By applying patches, isolating networks, and following CISA’s recommended practices, businesses can significantly reduce their risk of compromise. Stay vigilant, monitor for updates, and prioritize the security of your industrial environments.
---
References
[^1]: CISA. "[ICSA-26-022-05 Weintek cMT X Series HMI EasyWeb Service](https://www.cisa.gov/news-events/ics-advisories/icsa-26-022-05)". Retrieved 2025-01-24.
[^2]: Weintek. "[TEC25003E_cMT_EasyWeb_V2_Security_Issues](https://dl.weintek.com/public/Document/TEC/TEC25003E_cMT_EasyWeb_V2_Security_Issues.pdf)". Retrieved 2025-01-24.
[^3]: NIST. "[CVE-2025-14750 Detail](https://nvd.nist.gov/vuln/detail/CVE-2025-14750)". Retrieved 2025-01-24.
[^4]: NIST. "[CVE-2025-14751 Detail](https://nvd.nist.gov/vuln/detail/CVE-2025-14751)". Retrieved 2025-01-24.