Improper certificate validation in Yealink RPS
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-295.
Summary
In Yealink RPS before 2025-05-26, the certificate upload function does not properly validate certificate content, potentially allowing invalid certificates to be uploaded.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA RPS (Yealink) Fixed in 2025-05-26
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Yealink RPS 2025-05-26
3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2025-32952 Incorrect authorization in Yealink RPSPriority LOW 23
- TI-2025-32951 Resource allocation without limits in Yealink RPSPriority LOW 20
Timeline
- 2026-10-02 Threatist record created from CVE-2025-52919
- 2026-10-03 Alias added: GHSA-h483-pm62-h98h
References
More Yealink vulnerabilities
- TI-2021-09018 Yealink Device Management (DM) 3.6.0.20 allows command injection as root via the… KEVCVSS 3.1CRITICAL 9.8
- TI-2025-41051 An issue in Yealink T21P_E2 Phone 52.84.0.15 allows a remote normal privileged attacker… CVSS 3.1HIGH 8.8
- TI-2023-23573 An issue in YeaLinkSIP-T19P-E2 v.53.84.0.15 allows a remote privileged attacker to… CVSS 3.1HIGH 8.8
- TI-2026-10514 Yealink SIP-T46U Web FastCGI Service bttest mod_webd.BlueToothTest stack-based overflow CVSS 4.0HIGH 8.6
- TI-2026-10512 Yealink SIP-T46U Firmware Chunk Upload handler accupgradebychunk mod_upgrade.SparePartsUpload stack-based overflow CVSS 4.0HIGH 8.6
- TI-2026-10510 Yealink SIP-T46U Web FastCGI Service beforewifitest StartReportInformation stack-based overflow CVSS 4.0HIGH 8.6
Sources
- CVE-2025-52919 · CVE Program
- CVE-2025-52919 · NVD
- FIRST EPSS
- GHSA-h483-pm62-h98h · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences