CVE-2025-66954 — A vulnerability exists in the Buffalo Link Station version
CVE-2025-66954 — A vulnerability exists in the Buffalo Link Station version 1.85-0.01 that allows unauthenticated or guest-level users to enumerate valid usernames and their associated privilege roles. The issue is triggered by modifying a parameter within requests sent to the /nasapi endpoint.
What This Means For You
- If your environment is affected by CWE-639, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2025-66954 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
2 rules · 6 SIEM formats2 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2025-66954 - Buffalo LinkStation Username Enumeration via /nasapi
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2025-66954 | vulnerability | CVE-2025-66954 |
| CWE-639 | weakness | CWE-639 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | April 20, 2026 at 20:16 UTC |
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