CVE-2025-52916

Summary

Yealink RPS before 2025-06-04 lacks SN verification attempt limits, enabling brute-force enumeration (last five digits).

Affected Software

Weaknesses

• CWE-307: CWE-307 Improper Restriction of Excessive Authentication Attempts

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://www.yealink.com/en/trust-center/security-advisories/b8dc062eaa8d4f59
• https://support.yealink.com/en/portal/knowledge/show?id=6476e7cd6a27da76bd06a9c9
• https://seclists.org/fulldisclosure/2025/Jun/20
• https://dnip.ch/2025/06/25/yealink-voip-phones-insecurity-by-design/

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