Backdoor / default root credentials

Summary

CVECVE-2025-13293
StatePUBLISHED
AssignerCyberDanube
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-10 20:17:23 UTC
Updated2026-08-12 18:17:22 UTC
DescriptionA hard-coded or default root account credential in TBEA TLogger V2.1.0.0B0.0.0.0 allows an unauthenticated remote attacker to obtain root-level access to the device via the exposed SSH service. The root password can be recovered from the password hash stored in /etc/shadow and used to authenticate to the SSH service. Successful exploitation provides full administrative control of the affected device.

Risk And Classification

Primary CVSS: v4.0 9.3 CRITICAL from [email protected]

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.003710000 probability, percentile 0.301030000 (date 2026-08-13)

Problem Types: CWE-798 | CWE-798 CWE-798


VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary9.3CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/C...
4.0CNACVSS9.3CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA TBEA TBEA TLogger TBEA Communication Box 3rd Generation affected V2.1.0.0B0.0.0.0 custom Not specified

References

ReferenceSourceLinkTags
en.tbea.com/about.html [email protected] en.tbea.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: S. Eisenreich-Dietz (CyberDanube) (en)

CNA: T. Weber (CyberDanube) (en)

CNA: F. Koroknai (en)

CNA: D. Blagojevic (en)

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