CVE-2025-66738 – Yealink T21P_E2 Phone Remote Code Execution

CVE ID : CVE-2025-66738

Published : Dec. 26, 2025, 4:15 p.m. | 2 hours, 6 minutes ago

Description : An issue in Yealink T21P_E2 Phone 52.84.0.15 allows a remote normal privileged attacker to execute arbitrary code via a crafted request the ping function of the diagnostic component.

Severity: 6.5 | MEDIUM

Visit the link for more details, such as CVSS details, affected products, timeline, and more…