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CVE-2025-30280VulnerabilityPublished Updated

CVE-2025-30280: Siemens Mendix Runtime V10 · Observable Response Discrepancy

Affects Siemens Mendix Runtime V10Source CVE Database V5

0

Not known to be exploited · CVSS 5.3 Medium · fixed in 10.21.0 : update Siemens Mendix Runtime V10 when convenient.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 39% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 10.21.0, 10.18.5, 10.12.16 +1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 8 Apr 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

What to do

Upgrade com.mendix/runtime to 10.21.0, 10.18.5, 10.12.16 or 10.6.22.

Affected software

ProductAffectedFixed in
Mavencom.mendix/runtimepkg:maven/com.mendix/runtimeOther threatsAffected
  • <10.6.22
  • <10.12.16
  • <10.18.5
  • <10.21.0
Fixed in
  • 10.6.22
  • 10.12.16
  • 10.18.5
  • 10.21.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

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). If you cannot patch yet, 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.

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.

References

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