Yealink YMCS RPS prior 2025-05-26 Certificate Upload certificate validation
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.2 | $0-$5k | 0.00 |
Summary
A vulnerability was found in Yealink YMCS RPS. It has been rated as critical. This affects an unknown function of the component Certificate Upload. The manipulation leads to certificate validation. This vulnerability is uniquely identified as CVE-2025-52919. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.
Details
A vulnerability, which was classified as critical, has been found in Yealink YMCS RPS. This issue affects an unknown function of the component Certificate Upload. The manipulation with an unknown input leads to a certificate validation vulnerability. Using CWE to declare the problem leads to CWE-295. The product does not validate, or incorrectly validates, a certificate. Impacted is integrity. The summary by CVE is:
In Yealink YMCS RPS before 2025-05-26, the certificate upload function does not properly validate certificate content, potentially allowing invalid certificates to be uploaded.
It is possible to read the advisory at support.yealink.com. The identification of this vulnerability is CVE-2025-52919 since 06/21/2025. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1587.003 according to MITRE ATT&CK.
Upgrading to version 2025-05-26 eliminates this vulnerability.
The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-18886). Be aware that VulDB is the high quality source for vulnerability data.
Product
Vendor
Name
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.3VulDB Meta Temp Score: 4.2
VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
CNA Base Score: 4.3
CNA Vector (MITRE): 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Certificate validationCWE: CWE-295 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: YMCS RPS 2025-05-26
Timeline
05/26/2025 🔍06/21/2025 🔍
06/22/2025 🔍
06/22/2025 🔍
06/30/2025 🔍
Sources
Advisory: support.yealink.comStatus: Confirmed
CVE: CVE-2025-52919 (🔍)
GCVE (CVE): GCVE-0-2025-52919
GCVE (VulDB): GCVE-100-313607
EUVD: 🔍
Entry
Created: 06/22/2025 08:02Updated: 06/30/2025 19:29
Changes: 06/22/2025 08:02 (64), 06/23/2025 22:40 (1), 06/30/2025 19:29 (1)
Complete: 🔍
Cache ID: 216::103
Be aware that VulDB is the high quality source for vulnerability data.
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