CVE-2025-66738: n/a
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.
AI Analysis
Technical Summary
CVE-2025-66738 is a vulnerability in Yealink T21P_E2 Phone version 52.84.0.15 that allows a remote attacker with normal privileges to execute arbitrary code via a specially crafted request targeting the ping function of the device's diagnostic component. The vulnerability is classified under CWE-77 (Improper Neutralization of Special Elements used in a Command). The CVSS v3.1 base score is 8.8, indicating high severity with network attack vector, low attack complexity, no user interaction, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows remote code execution with normal privileges, potentially leading to full compromise of the affected device's confidentiality, integrity, and availability. This could enable attackers to execute arbitrary commands remotely on the device.
Mitigation Recommendations
No official patch or fix is currently available for this vulnerability. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is released, restrict network access to the affected device's diagnostic functions and monitor for suspicious activity related to the ping function.
CVE-2025-66738: n/a
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 v3.1
Score 8.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-66738 is a vulnerability in Yealink T21P_E2 Phone version 52.84.0.15 that allows a remote attacker with normal privileges to execute arbitrary code via a specially crafted request targeting the ping function of the device's diagnostic component. The vulnerability is classified under CWE-77 (Improper Neutralization of Special Elements used in a Command). The CVSS v3.1 base score is 8.8, indicating high severity with network attack vector, low attack complexity, no user interaction, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows remote code execution with normal privileges, potentially leading to full compromise of the affected device's confidentiality, integrity, and availability. This could enable attackers to execute arbitrary commands remotely on the device.
Mitigation Recommendations
No official patch or fix is currently available for this vulnerability. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is released, restrict network access to the affected device's diagnostic functions and monitor for suspicious activity related to the ping function.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2025-12-08T00:00:00.000Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 694ebaca33784cecd47d2b67
Added to database: 12/26/2025, 16:41:46 UTC
Last enriched: 07/05/2026, 21:40:54 UTC
Last updated: 09/10/2026, 19:36:51 UTC
Views: 225
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