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TI-2018-11607 Aliases CVE-2018-16217GHSA-fq45-h78c-mjvh

The network diagnostic function (ping) in the Yeahlink Ultra-elegant IP Phone SIP-T41P…

Priority MEDIUM 44CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-78.

Summary

The network diagnostic function (ping) in the Yeahlink Ultra-elegant IP Phone SIP-T41P (firmware 66.83.0.35) allows a remote authenticated attacker to trigger OS commands or open a reverse shell via command injection.

Why it matters now

EPSS 0.03255 88th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:yealink:ultra-elegant_ip_phone_sip-t41p_firmware:66.83.0.35:*:*:*:*:*:*:*66.83.0.35VulnerableYealink
cpe:2.3:h:yealink:ultra-elegant_ip_phone_sip-t41p:-:*:*:*:*:*:*:*not specified by NVDRunning onYealink
  • cpe:2.3:o:yealink:ultra-elegant_ip_phone_sip-t41p_firmware:66.83.0.35:*:*:*:*:*:*:* Versions 66.83.0.35 Vulnerable ·Yealink
  • cpe:2.3:h:yealink:ultra-elegant_ip_phone_sip-t41p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Yealink

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-16217
  2. 2026-10-03 Alias added: GHSA-fq45-h78c-mjvh

References

  • TI-2018-11608 A CSRF (Cross Site Request Forgery) in the web interface of the Yeahlink Ultra-elegant IP… CVSS 3.0HIGH 8.8
  • TI-2018-11611 The diagnostics web interface in the Yeahlink Ultra-elegant IP Phone SIP-T41P (firmware… CVSS 3.0HIGH 8.0

Sources