CVE-2025-66737: n/a
Yealink T21P_E2 Phone 52.84.0.15 is vulnerable to Directory Traversal. A remote normal privileged attacker can read arbitrary files via a crafted request result read function of the diagnostic component.
AI Analysis
Technical Summary
CVE-2025-66737 is a directory traversal vulnerability affecting Yealink T21P_E2 Phone firmware version 52.84.0.15. The issue allows a remote attacker with normal privileges to read arbitrary files by sending a specially crafted request to the diagnostic component's read function. This vulnerability is classified under CWE-23 (Improper Neutralization of File Path Elements). No patch or vendor advisory information is currently available.
Potential Impact
An attacker with normal privileges can read arbitrary files on the affected device remotely, potentially exposing sensitive information. There is no indication of impact on integrity or availability. The vulnerability does not require user interaction and can be exploited over the network.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict network access to the device's diagnostic interfaces to trusted users only and monitor for suspicious activity related to file access requests.
CVE-2025-66737: n/a
Description
Yealink T21P_E2 Phone 52.84.0.15 is vulnerable to Directory Traversal. A remote normal privileged attacker can read arbitrary files via a crafted request result read function of the diagnostic component.
CVSS v3.1
Score 4.3medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-66737 is a directory traversal vulnerability affecting Yealink T21P_E2 Phone firmware version 52.84.0.15. The issue allows a remote attacker with normal privileges to read arbitrary files by sending a specially crafted request to the diagnostic component's read function. This vulnerability is classified under CWE-23 (Improper Neutralization of File Path Elements). No patch or vendor advisory information is currently available.
Potential Impact
An attacker with normal privileges can read arbitrary files on the affected device remotely, potentially exposing sensitive information. There is no indication of impact on integrity or availability. The vulnerability does not require user interaction and can be exploited over the network.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict network access to the device's diagnostic interfaces to trusted users only and monitor for suspicious activity related to file access requests.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2025-12-08T00:00:00.000Z
- State
- PUBLISHED
Threat ID: 694eb6b333784cecd47a79ae
Added to database: 12/26/2025, 16:24:19 UTC
Last enriched: 07/05/2026, 21:40:50 UTC
Last updated: 09/10/2026, 19:36:51 UTC
Views: 220
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