CVE-2025-52917Network attack vector

Authenticated information disclosure via unthrottled cross-tenant API enumeration

Published Jun 21, 2025 · Updated Jul 28, 2025

Missing rate limiting in Yealink RPS before 2025-05-26 allows remote authenticated users to disclose registered MAC addresses via API requests. The RPS API accepts repeated MAC-address queries across all global organizations without throttling or brute-force protection. A valid RPS account is required, and successful enumeration reveals whether device addresses are registered beyond the account's organization.

CVSS severity4.3
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing rate limiting in Yealink RPS before 2025-05-26 allows remote authenticated users to disclose registered MAC addresses via API requests. The RPS API accepts repeated MAC-address queries across all global organizations without throttling or brute-force protection. A valid RPS account is required, and successful enumeration reveals whether device addresses are registered beyond the account's organization.

The record

CVE
CVE-2025-52917
Published
Jun 21, 2025
Updated
Jul 28, 2025
Vendor
Yealink
Product
Yealink RPS (Redirection and Provisioning Service)
Classifications
CWE-770, T1595
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 21, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 28, 2025Record 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.

  1. Affected versionversion=0 <2025-05-26

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Yealink · Yealink RPS (Redirection and Provisioning Service)version=0 <2025-05-26

Published CVSS scores

4.3YealinkCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T1595Active Scanning

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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