Sip-T21\(P\)E2 Firmware CVE Vulnerabilities

By Yealink — 2 known vulnerabilities

Critical
0
High
1
Medium
1
Low
0
None
0

All Sip-T21\(P\)E2 Firmware CVEs

Recent Highest Score Oldest
CVE-2025-66737
4.3 medium

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.

Dec 26, 2025
CVE-2025-66738
8.8 high

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.

Dec 26, 2025