# CVE-2026-7156

> Vulnerability · severity: **CRITICAL** (CVSS 9.8).

## Description

A vulnerability was detected in Totolink A8000RU 7.1cu.643_b20200521. Affected is the function CsteSystem of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument HTTP results in os command injection. The attack may be launched remotely. The exploit is now public and may be used.

## Key facts

- **CVE ID:** CVE-2026-7156
- **Published:** 2026-04-27
- **CVSS severity:** CRITICAL
- **CVSS base score:** 9.8
- **CWE codes:** CWE-77, CWE-78

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-7156

## Citation

> AI Analytics. CVE-2026-7156. Retrieved 2026-07-19 from https://api.ai-analytics.org/cve/CVE-2026-7156. Derived from NIST NVD. Licensed CC0.

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