Unrated severityNVD Advisory· Published Dec 26, 2025· Updated Dec 27, 2025

CVE-2025-66738

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.

Affected products

Yealink/T21P_E2 Phonedescription
Yealink/Ip Phone Sip T21pllm-fuzzy
Range: = 52.84.0.15

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

yealink.commitre
drive.google.com/file/d/13t5ywSPJMx4487njJcH3ZTNuc_k3h4ty/viewmitre

News mentions

No linked articles in our index yet.

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