CVE-2025-30280: CWE-204: Observable Response Discrepancy in Siemens Mendix Runtime V10
A vulnerability has been identified in Mendix Runtime V10 (All versions < V10.21.0), Mendix Runtime V10.12 (All versions < V10.12.16), Mendix Runtime V10.18 (All versions < V10.18.5), Mendix Runtime V10.6 (All versions < V10.6.22), Mendix Runtime V8 (All versions < V8.18.35), Mendix Runtime V9 (All versions < V9.24.34). Affected applications allow for entity enumeration due to distinguishable responses in certain client actions. This could allow an unauthenticated remote attacker to list all valid entities and attribute names of a Mendix Runtime-based application.
AI Analysis
Technical Summary
CVE-2025-30280 is a medium-severity vulnerability affecting multiple versions of Siemens Mendix Runtime, including V8, V9, and various subversions of V10 prior to their respective patched releases. The vulnerability is classified under CWE-204, which pertains to Observable Response Discrepancy. Specifically, the issue allows unauthenticated remote attackers to perform entity enumeration on Mendix Runtime-based applications by exploiting distinguishable responses in certain client actions. This means that an attacker can systematically identify valid entities and attribute names within the application without needing any authentication or user interaction. The vulnerability arises because the application responses differ in a way that reveals information about the existence or structure of backend entities, which should normally remain confidential. The CVSS 3.1 base score is 5.3 (medium), reflecting that the attack vector is network-based, requires no privileges or user interaction, and impacts confidentiality only, without affecting integrity or availability. No known exploits are currently reported in the wild, and Siemens has not yet published patch links, indicating that mitigation may require close monitoring for official updates. This vulnerability could be leveraged as a reconnaissance step in a larger attack chain, enabling attackers to gather sensitive application schema information that could facilitate further exploitation such as injection attacks or unauthorized data access.
Potential Impact
For European organizations using Mendix Runtime-based applications, this vulnerability poses a risk primarily to the confidentiality of application data structures. While it does not directly compromise data integrity or availability, the ability to enumerate entities and attributes can provide attackers with valuable intelligence to craft more targeted attacks, including injection or privilege escalation attempts. This is particularly concerning for industries with sensitive data such as finance, healthcare, and critical infrastructure, where Mendix applications may be used for business-critical operations. The unauthenticated nature of the vulnerability means that attackers can probe applications externally without needing credentials, increasing the attack surface. Additionally, the exposure of internal application schema details may violate data protection regulations like GDPR if it leads to unauthorized data access. Although no active exploitation is known, the presence of this vulnerability could attract attackers aiming to perform reconnaissance or prepare for future attacks, especially in high-value European targets.
Mitigation Recommendations
European organizations should prioritize updating Mendix Runtime to the latest patched versions as soon as Siemens releases them for the affected branches (V8, V9, and V10). Until patches are available, organizations can implement the following mitigations: 1) Employ Web Application Firewalls (WAFs) with custom rules to detect and block suspicious enumeration patterns or anomalous client actions that attempt to differentiate entity existence; 2) Conduct thorough application-level input validation and error handling to minimize distinguishable response discrepancies that leak information; 3) Restrict access to Mendix Runtime applications through network segmentation and IP whitelisting where feasible, limiting exposure to trusted networks or VPNs; 4) Monitor application logs for unusual patterns indicative of enumeration attempts; 5) Engage with Siemens support and subscribe to security advisories to receive timely updates and patches. Additionally, developers should review application logic to ensure that error messages and responses do not reveal internal structure details.
Affected Countries
Germany, Netherlands, United Kingdom, France, Italy, Sweden, Belgium
CVE-2025-30280: CWE-204: Observable Response Discrepancy in Siemens Mendix Runtime V10
Description
A vulnerability has been identified in Mendix Runtime V10 (All versions < V10.21.0), Mendix Runtime V10.12 (All versions < V10.12.16), Mendix Runtime V10.18 (All versions < V10.18.5), Mendix Runtime V10.6 (All versions < V10.6.22), Mendix Runtime V8 (All versions < V8.18.35), Mendix Runtime V9 (All versions < V9.24.34). Affected applications allow for entity enumeration due to distinguishable responses in certain client actions. This could allow an unauthenticated remote attacker to list all valid entities and attribute names of a Mendix Runtime-based application.
AI-Powered Analysis
Technical Analysis
CVE-2025-30280 is a medium-severity vulnerability affecting multiple versions of Siemens Mendix Runtime, including V8, V9, and various subversions of V10 prior to their respective patched releases. The vulnerability is classified under CWE-204, which pertains to Observable Response Discrepancy. Specifically, the issue allows unauthenticated remote attackers to perform entity enumeration on Mendix Runtime-based applications by exploiting distinguishable responses in certain client actions. This means that an attacker can systematically identify valid entities and attribute names within the application without needing any authentication or user interaction. The vulnerability arises because the application responses differ in a way that reveals information about the existence or structure of backend entities, which should normally remain confidential. The CVSS 3.1 base score is 5.3 (medium), reflecting that the attack vector is network-based, requires no privileges or user interaction, and impacts confidentiality only, without affecting integrity or availability. No known exploits are currently reported in the wild, and Siemens has not yet published patch links, indicating that mitigation may require close monitoring for official updates. This vulnerability could be leveraged as a reconnaissance step in a larger attack chain, enabling attackers to gather sensitive application schema information that could facilitate further exploitation such as injection attacks or unauthorized data access.
Potential Impact
For European organizations using Mendix Runtime-based applications, this vulnerability poses a risk primarily to the confidentiality of application data structures. While it does not directly compromise data integrity or availability, the ability to enumerate entities and attributes can provide attackers with valuable intelligence to craft more targeted attacks, including injection or privilege escalation attempts. This is particularly concerning for industries with sensitive data such as finance, healthcare, and critical infrastructure, where Mendix applications may be used for business-critical operations. The unauthenticated nature of the vulnerability means that attackers can probe applications externally without needing credentials, increasing the attack surface. Additionally, the exposure of internal application schema details may violate data protection regulations like GDPR if it leads to unauthorized data access. Although no active exploitation is known, the presence of this vulnerability could attract attackers aiming to perform reconnaissance or prepare for future attacks, especially in high-value European targets.
Mitigation Recommendations
European organizations should prioritize updating Mendix Runtime to the latest patched versions as soon as Siemens releases them for the affected branches (V8, V9, and V10). Until patches are available, organizations can implement the following mitigations: 1) Employ Web Application Firewalls (WAFs) with custom rules to detect and block suspicious enumeration patterns or anomalous client actions that attempt to differentiate entity existence; 2) Conduct thorough application-level input validation and error handling to minimize distinguishable response discrepancies that leak information; 3) Restrict access to Mendix Runtime applications through network segmentation and IP whitelisting where feasible, limiting exposure to trusted networks or VPNs; 4) Monitor application logs for unusual patterns indicative of enumeration attempts; 5) Engage with Siemens support and subscribe to security advisories to receive timely updates and patches. Additionally, developers should review application logic to ensure that error messages and responses do not reveal internal structure details.
Affected Countries
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Technical Details
- Data Version
- 5.1
- Assigner Short Name
- siemens
- Date Reserved
- 2025-03-20T11:01:33.481Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 68487f551b0bd07c3938a258
Added to database: 6/10/2025, 6:54:13 PM
Last enriched: 7/11/2025, 12:19:21 AM
Last updated: 8/12/2025, 9:08:20 AM
Views: 20
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