Vulnerability · Published Aug 10, 2026 · Assigned by CyberDanube
CVE-2025-15681Insufficient Webserver Authentication
Critical 9.2
In plain English
A critical-severity missing authentication in TBEA TLogger (TBEA Communication Box 3rd Generation) from TBEA. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| TBEA | TBEA TLogger (TBEA Communication Box 3rd Generation) | 0 – through V2.1.0.0B0.0.0.0 |
Weakness: CWE-306 · Vector: 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