Browse all 13 CVE security advisories affecting Yealink. AI-powered Chinese analysis, POCs, and references for each vulnerability.
Yealink develops IP phones and video conferencing solutions for business communications. Historically, their devices have faced vulnerabilities including remote code execution, cross-site scripting, and privilege escalation, often stemming from web interfaces and default credentials. Security researchers have identified issues in firmware management and session handling that could allow unauthorized access. While no major public security incidents have been widely reported, the 7 CVEs on record highlight ongoing concerns about secure configuration and patch management in their communication products. Organizations deploying Yealink equipment should implement network segmentation and regular firmware updates to mitigate potential risks.
| CVE ID | Title | CVSS | Severity | Published |
|---|---|---|---|---|
| CVE-2026-12223 | Yealink SIP-T46U Web FastCGI Service tftpuploadiperf mod_webd.TFTPUploadIperf command injection — SIP-T46UCWE-77 | 5.5 | Medium | 2026-06-15 |
| CVE-2026-12222 | Yealink SIP-T46U Web FastCGI Service bttest mod_webd.BlueToothTest stack-based overflow — SIP-T46UCWE-121 | 8.0 | High | 2026-06-15 |
| CVE-2026-12221 | Yealink SIP-T46U Firmware Chunk Upload upgrade sprintf stack-based overflow — SIP-T46UCWE-121 | 8.0 | High | 2026-06-15 |
| CVE-2026-12220 | Yealink SIP-T46U Firmware Chunk Upload handler accupgradebychunk mod_upgrade.SparePartsUpload stack-based overflow — SIP-T46UCWE-121 | 8.0 | High | 2026-06-15 |
| CVE-2026-12219 | Yealink SIP-T46U Web FastCGI Service start mod_diagnose.CommandShellByType command injection — SIP-T46UCWE-77 | 6.3 | Medium | 2026-06-15 |
| CVE-2026-12218 | Yealink SIP-T46U Web FastCGI Service beforewifitest StartReportInformation stack-based overflow — SIP-T46UCWE-121 | 8.0 | High | 2026-06-15 |
This page lists every published CVE security advisory associated with Yealink. Each entry links to a detailed page with CVSS scoring, CWE classification, affected products and references. AI-generated Chinese analysis is provided for fast triage.