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Conprosys Hmi System EUVDEUVD-2025-19656

| CVE-2025-34081 HIGH
Insertion of Sensitive Information Into Debugging Code (CWE-215)
2025-07-01 disclosure@vulncheck.com
7.5
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A10:2025 - Mishandling of Exceptional Conditions
ASVS 5.0
V16 - Security Logging and Error Handling Debug information protection
Impact

Exposed information (credentials, internal paths, user data, configuration) can be leveraged for further attacks or regulatory violations. With a CVSS score of 7.5 (HIGH), this represents a significant risk.

Exploit ScenarioDerived

An attacker triggers error conditions or accesses improperly protected endpoints to extract sensitive internal information from the application.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 16, 2026

The Contec Co.,Ltd. CONPROSYS HMI System (CHS) exposes a PHP phpinfo() debug page to unauthenticated users that may contain sensitive data useful for an attacker.This issue affects CONPROSYS HMI System (CHS): before 3.7.7.

Earlier versions of this analysis (1)
v1 Mar 16, 2026 - 01:42 CVSS 7.5

RemediationAI

Implement proper access controls. Sanitize error messages in production. Review logging practices to avoid capturing sensitive data.

Affected VersionsENISA

CONPROSYS HMI System (CHS) 0 <3.7.7

Affected Packages

euvd conprosys_hmi_system_chs fix: 3.7.7

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Information disclosure occurs when an application inadvertently reveals sensitive data to unauthorized actors through error messages, logs, or improper access controls.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

2
Patch available
Apr 16, 2026 - 05:29 EUVD
3.7.7
CVE Published
Jul 01, 2025 - 18:15 nvd
HIGH 7.5

Executive ViewAI

Why It Matters

Contec's CONPROSYS HMI System (CHS) exposes a publicly accessible PHP debug page that reveals sensitive system configuration details to unauthenticated users, enabling attackers to gather reconnaissance information for follow-on attacks. Organizations running CHS versions prior to 3.7.7 should treat this as an information disclosure risk that weakens overall security posture by providing attackers with detailed system architecture and software inventory data.

Business Impact: Medium
Compensating Controls

Apply vendor patch to upgrade to CHS version 3.7.7 or later. If immediate patching is not feasible, implement firewall rules to restrict HTTP/HTTPS access to the CHS interface to trusted administrative networks only, and disable or remove the phpinfo() debug page through CHS configuration if the application permits manual remediation.

Threat Intelligence Overview

EPSS Score
0.1%
Top 75% exploitable
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.1%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact
Medium

Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

CVE-2022-44456 CRITICAL
9.8 Dec 19

CONPROSYS HMI System (CHS) Ver.3.4.4?and earlier allows a remote unauthenticated attacker to execute an arbitrary OS com

CVE-2023-2758 MEDIUM POC
5.3 May 31

A denial of service vulnerability exists in Contec CONPROSYS HMI System versions 3.5.2 and prior. Rated medium severity

CVE-2023-28657 HIGH
8.8 Jun 01

Improper access control vulnerability exists in CONPROSYS HMI System (CHS) versions prior to 3.5.3. Rated high severity

CVE-2023-28713 HIGH
8.1 Jun 01

Plaintext storage of a password exists in CONPROSYS HMI System (CHS) versions prior to 3.5.3. Rated high severity (CVSS

CVE-2023-28399 HIGH
7.8 Jun 01

Incorrect permission assignment for critical resource exists in CONPROSYS HMI System (CHS) versions prior to 3.5.3. Rate

CVE-2023-22339 HIGH
7.5 Jan 20

Improper access control vulnerability in CONPROSYS HMI System (CHS) Ver.3.4.5 and earlier allows a remote unauthenticate

CVE-2023-22331 HIGH
7.5 Jan 20

Use of default credentials vulnerability in CONPROSYS HMI System (CHS) Ver.3.4.5 and earlier allows a remote unauthentic

CVE-2023-29154 HIGH
7.2 Jun 01

SQL injection vulnerability exists in the CONPROSYS HMI System (CHS) versions prior to 3.5.3. Rated high severity (CVSS

CVE-2023-22324 MEDIUM
6.5 Jan 30

SQL injection vulnerability in the CONPROSYS HMI System (CHS) Ver.3.5.0 and earlier allows a remote authenticated attack

CVE-2025-34080 MEDIUM
6.1 Jul 01

The Contec Co.,Ltd. CONPROSYS HMI System (CHS) is vulnerable to Cross-Site Scripting (XSS) in the getqsetting.php functi

CVE-2023-22373 MEDIUM
5.4 Jan 20

Cross-site scripting vulnerability in CONPROSYS HMI System (CHS) Ver.3.4.5 and earlier allows a remote authenticated att

CVE-2023-22334 MEDIUM
5.3 Jan 20

Use of password hash instead of password for authentication vulnerability in CONPROSYS HMI System (CHS) Ver.3.4.5 and ea

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