CVE-2025-66738

HIGH EPSS 44.0%
Published Dec 26, 20256mo ago · Modified Jun 17, 20262w ago
8.8 CVSS 3.1
High
Find Similar
Published Dec 26, 2025 6mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
8.8
Exploitability
2.8
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
44.0% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-77 Command Injection Injection

Affected Products 2

VendorProductVersionRange
yealinksip-t21\(p\)e2_firmware52.84.0.15any
yealinksip-t21\(p\)e2*any

References 2

  • yealink.com http://yealink.com
    Product
  • drive.google.com https://drive.google.com/file/d/13t5ywSPJMx4487njJcH3ZTNuc_k3h4ty/view?usp=sharing
    Exploit

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.