CVE-2025-66737

Medium · 4.3

CVSS

4.3

EPSS

0.7%

Published

Dec 26, 2025

CISA due date

—

The record

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.

Affected packages

Ecosystem	Package	Introduced	Fixed