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Yealink YMCS RPS before 2025-06-04 lacks SN verification attempt limits, enabling brute-force enumeration (last five digits).
Reserved 2025-06-21 | Published 2025-06-21 | Updated 2025-06-21 | Assigner mitreCWE-307 Improper Restriction of Excessive Authentication Attempts
www.yealink.com/...nter/security-advisories/b8dc062eaa8d4f59
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