Read the docs
TI-2025-14298 Aliases CVE-2025-15681GHSA-m738-f6gp-rv3j

Insufficient Webserver Authentication

Priority MEDIUM 43CWE-306Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00676 52nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
TBEATBEA TLogger (TBEA Communication Box 3rd Generation)up to V2.1.0.0B0.0.0.0—No fix listedCNA
  • TBEA TLogger (TBEA Communication Box 3rd Generation) VendorTBEA Affected up to V2.1.0.0B0.0.0.0 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-15681
  2. 2026-10-03 Alias added: GHSA-m738-f6gp-rv3j

References

  • TI-2025-12157 Backdoor / default root credentials CVSS 4.0CRITICAL 9.3
  • TI-2025-14300 Multiple Unauthenticated Denial-of-Service Conditions CVSS 4.0HIGH 8.8
  • TI-2025-14299 Unauthenticated Resource Exhaustion CVSS 4.0HIGH 8.7
  • TI-2025-12158 Unauthenticated SQL injection in TBEA TLogger CVSS 4.0CRITICAL 9.3
  • TI-2025-14297 Information Disclosure via UART CVSS 4.0LOW 2.4

Sources