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CVE-2025-15681— Insufficient Webserver Authentication

Quick assessment

Affected
TBEA TBEA TLogger (TBEA Communication Box 3rd Generation)
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

TBEA TLogger是TBEA公司的一系列专用于光伏系统监控和管理平台的设备。 TBEA TLogger V2.1.0.0B0.0.0.0及之前版本存在授权问题漏洞，该漏洞源于Web服务器存在身份验证绕过，允许未认证攻击者通过/index.asp端点直接访问受保护功能，可能导致设备配置和数据泄露或修改，以及导致Web服务器崩溃。

CVSS 9.2 · Critical EPSS 0.68% · P51

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
TBEA TBEA TLogger (TBEA Communication Box 3rd Generation) ≤ V2.1.0.0B0.0.0.0 affected
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I. Basic Information for CVE-2025-15681

Vulnerability Information
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Vulnerability Title
Insufficient Webserver Authentication
Source: CVE Program / CVE List V5
Vulnerability Description
TBEA TLogger V2.1.0.0B0.0.0.0 contains an authentication bypass in its web server. After a user has previously authenticated to the device, an unauthenticated attacker can directly access protected functionality through the /index.asp endpoint without providing valid credentials. This allows the attacker to access functionality intended for authenticated users and may expose or modify device configuration and data. Logging out from the bypassed state can additionally cause the web server to crash.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
TBEA TLogger 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TBEA TLogger是TBEA公司的一系列专用于光伏系统监控和管理平台的设备。 TBEA TLogger V2.1.0.0B0.0.0.0及之前版本存在授权问题漏洞，该漏洞源于Web服务器存在身份验证绕过，允许未认证攻击者通过/index.asp端点直接访问受保护功能，可能导致设备配置和数据泄露或修改，以及导致Web服务器崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
TBEA TBEA TLogger (TBEA Communication Box 3rd Generation) 0 ~ V2.1.0.0B0.0.0.0 -

II. Public POCs for CVE-2025-15681

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III. Intelligence Information for CVE-2025-15681

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Other References for CVE-2025-15681 (1)

Same Patch Batch · TBEA · 2026-08-10 · 6 CVEs total

CVE-2025-13294 9.3 CRITICAL Unauthenticated SQL Injection
CVE-2025-13293 9.3 CRITICAL Backdoor / default root credentials
CVE-2025-15683 8.8 HIGH Multiple Unauthenticated Denial-of-Service Conditions
CVE-2025-15682 8.7 HIGH Unauthenticated Resource Exhaustion
CVE-2025-15680 2.4 LOW Information Disclosure via UART

IV. Related Vulnerabilities

Same product: TBEA TLogger (TBEA Communication Box 3rd Generation)
Same vendor: TBEA
Same weakness: CWE-306

V. Comments for CVE-2025-15681

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