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CVE-2025-66738

nvd nist
Published: Dec 26, 2025Modified: Jan 9, 2026

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8.8
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 2.8 / Impact: 5.9
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

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 (1)

Yealink
1 product
Sip T21(p)e2 Firmware
Configuration A
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Sip T21(p)e2 Firmware
Version 52.84.0.15
Running on/withPlatform Versions
Yealink
Sip T21(p)e2
All versions

Related CWEs

CWE-77
Improper Neutralization of Special Elements used in a Command ('Command Injection')
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

References (2)

Source: cve@mitre.org
Product
Source: cve@mitre.org
Exploit

Timeline

No history available yet.