# CVE-2026-7538

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

## Description

A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function Vulnerability of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument proto leads to os command injection. The attack may be initiated remotely. The exploit is publicly available and might be used.

## Key facts

- **CVE ID:** CVE-2026-7538
- **Published:** 2026-05-01
- **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-2026-7538

## Citation

> AI Analytics. CVE-2026-7538. Retrieved 2026-07-18 from https://api.ai-analytics.org/cve/CVE-2026-7538. Derived from NIST NVD. Licensed CC0.

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