Username and role disclosure via unchecked object reference
Published Apr 20, 2026 · Updated Apr 20, 2026
Authorization bypass in Buffalo LinkStation 1.85-0.01 allows remote attackers to enumerate usernames and privilege roles through /nasapi. The endpoint accepts a user-controlled query parameter without verifying authorization and returns records belonging to other accounts. Unauthenticated access or guest-level access is sufficient; the demonstrated consequence is limited to disclosure of account and role metadata.
Summary
What happened
Authorization bypass in Buffalo LinkStation 1.85-0.01 allows remote attackers to enumerate usernames and privilege roles through /nasapi. The endpoint accepts a user-controlled query parameter without verifying authorization and returns records belonging to other accounts. Unauthenticated access or guest-level access is sufficient; the demonstrated consequence is limited to disclosure of account and role metadata.
The record
- CVE
- CVE-2025-66954
- Published
- Apr 20, 2026
- Updated
- Apr 20, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-639, T1087
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 20, 2026CVE publishedPublication date reported by the CVE source.
- Apr 20, 2026Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
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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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