# CVE-2026-7139

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

## Description

A flaw has been found in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function setWiFiAclRules of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. This manipulation of the argument mode causes os command injection. The attack is possible to be carried out remotely. The exploit has been published and may be used.

## Key facts

- **CVE ID:** CVE-2026-7139
- **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-2026-7139

## Citation

> AI Analytics. CVE-2026-7139. Retrieved 2026-07-21 from https://api.ai-analytics.org/cve/CVE-2026-7139. Derived from NIST NVD. Licensed CC0.

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