Username enumeration via unprotected endpoint responses
Published Jun 24, 2025 · Updated Jun 24, 2025
Observable response discrepancy in MB connect line and Helmholz remote-access portals before 2.18.0 allows remote attackers to enumerate usernames. An unprotected endpoint reveals whether a submitted username is valid through distinguishable responses; its URL and response details are undisclosed. No authentication or user interaction is required, and the bounded consequence is disclosure of valid account names.
Summary
What happened
Observable response discrepancy in MB connect line and Helmholz remote-access portals before 2.18.0 allows remote attackers to enumerate usernames. An unprotected endpoint reveals whether a submitted username is valid through distinguishable responses; its URL and response details are undisclosed. No authentication or user interaction is required, and the bounded consequence is disclosure of valid account names.
The record
- CVE
- CVE-2025-3092
- Published
- Jun 24, 2025
- Updated
- Jun 24, 2025
- Vendor
- Helmholz GmbH & Co. KG
- Product
- myREX24.virtual
- Classifications
- CWE-204, T1087
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 24, 2025CVE publishedPublication date reported by the CVE source.
- Jun 24, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <2.16.5
- Affected versionversion=0 <2.18.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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