Account enumeration via distinguishable responses
Published Sep 11, 2026 · Updated Sep 11, 2026
Sensitive data exposure in KCA EH2070, EH3040, EH4200, and EH1000B allows remote attackers to enumerate valid user accounts. The account-validation path produces distinguishable responses for valid and invalid identifiers instead of a uniform failure, exposing account existence. Affected firmware is before 2.8.0A on EH2070, before 2.5.0A on EH3040 and EH4200, and before 2.7.0A on EH1000B; no authentication is required.
Summary
What happened
Sensitive data exposure in KCA EH2070, EH3040, EH4200, and EH1000B allows remote attackers to enumerate valid user accounts. The account-validation path produces distinguishable responses for valid and invalid identifiers instead of a uniform failure, exposing account existence. Affected firmware is before 2.8.0A on EH2070, before 2.5.0A on EH3040 and EH4200, and before 2.7.0A on EH1000B; no authentication is required.
The record
- CVE
- CVE-2026-89173
- Published
- Sep 11, 2026
- Updated
- Sep 11, 2026
- Vendor
- Kingdom Communication Associated Ltd.
- Product
- EH2070
- Classifications
- T1087
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 11, 2026CVE publishedPublication date reported by the CVE source.
- Sep 11, 2026Record 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 <2.8.0A
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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