CVE-2025-66738

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.

high 8.8 CVSS 3.1
Published: Dec 26, 2025
Modified: Jan 9, 2026
Vendor: Yealink
Product: Sip-T21\(P\)E2 Firmware
Versions: 52.84.0.15

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.

References

Related CVEs

CVE-2025-66737 medium · 4.3
Yealink T21P_E2 Phone 52.84.0.15 is vulnerable to Directory Traversal. A remote normal privileged attacker can read arbitrary files via a crafted request result read function of th