CVE-2025-66737

MEDIUM EPSS 45.1%
Published Dec 26, 20256mo ago · Modified Jun 17, 20261w ago
4.3 CVSS 3.1
Medium
Find Similar
Published Dec 26, 2025 6mo ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
4.3
Exploitability
2.8
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
45.1% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-23

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/1MpxnCL4koKupqWWDmY3ljlybjIPD8ieD/view?usp=sharing
    Exploit

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.