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.
References
| Link | Resource |
|---|---|
| http://yealink.com | Product |
| https://drive.google.com/file/d/13t5ywSPJMx4487njJcH3ZTNuc_k3h4ty/view?usp=sharing | Exploit |
Configurations
Configuration 1 (hide)
| AND |
|
History
09 Jan 2026, 20:45
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Yealink
Yealink sip-t21\(p\)e2 Yealink sip-t21\(p\)e2 Firmware |
|
| CPE | cpe:2.3:h:yealink:sip-t21\(p\)e2:-:*:*:*:*:*:*:* cpe:2.3:o:yealink:sip-t21\(p\)e2_firmware:52.84.0.15:*:*:*:*:*:*:* |
|
| References | () http://yealink.com - Product | |
| References | () https://drive.google.com/file/d/13t5ywSPJMx4487njJcH3ZTNuc_k3h4ty/view?usp=sharing - Exploit |
27 Dec 2025, 16:15
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 8.8 |
26 Dec 2025, 17:15
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 6.5 |
| CWE | CWE-77 |
26 Dec 2025, 16:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-12-26 16:15
Updated : 2026-01-09 20:45
NVD link : CVE-2025-66738
Mitre link : CVE-2025-66738
CVE.ORG link : CVE-2025-66738
JSON object : View
Products Affected
yealink
- sip-t21\(p\)e2_firmware
- sip-t21\(p\)e2
CWE
CWE-77
Improper Neutralization of Special Elements used in a Command ('Command Injection')