CVE-2025-66737

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 the diagnostic component.

medium 4.3 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

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 the diagnostic component.

References

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