PT-2025-26528 · Yealink · Yealink Ymcs Rps Api

Jeroen Hermans + 1 · Published 2025-06-21 · Updated 2025-07-10 · CVE-2025-52917

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Yealink YMCS RPS API versions prior to 2025-05-26

Description: The issue is related to the lack of rate limiting in the Yealink YMCS RPS API, which could potentially enable information disclosure via excessive requests.

Recommendations: For versions prior to 2025-05-26, consider implementing rate limiting on the API to prevent excessive requests until a patch is available.

Fix

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2025-52917

Affected Products

Yealink Ymcs Rps Api

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2025-52917 · Security Note
• https://support.yealink.com/en/portal/knowledge/show?id=6476e7cd6a27da76bd06a9c9 · Note
• https://t.me/cvetracker/26766 · Telegram Post
• https://t.me/cvenotify/128429 · Telegram Post
• https://seclists.org/fulldisclosure/2025/Jun/20 · Note
• https://dnip.ch/2025/06/25/yealink-voip-phones-insecurity-by-design · Note
• https://yealink.com/en/trust-center/security-advisories/f8205560a8c7443f · Note
• https://twitter.com/CVEnew/status/1936567690891849909 · Twitter Post
• https://twitter.com/transilienceai/status/1936648626987733243 · Twitter Post