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CVE-2026-7136 - Vulnerability Analysis

CriticalCVSS: 9.8

Last Updated: April 27, 2026

Totolink A8000RU - Command Injection

Published: April 27, 2026Updated: April 27, 2026Remote Exploitable

Overview

Totolink A8000RU 7.1cu.643_b20200521 contains a command injection caused by manipulation of the "wanIdx" argument in /cgi-bin/cstecgi.cgi's setDmzCfg function, letting remote attackers execute OS commands, exploit requires no special privileges.

Severity & Score

Severity: Critical

CVSS Score: 9.8

Impact

Remote attackers can execute arbitrary OS commands, potentially leading to full system compromise.

Mitigation

Update to the latest version or apply vendor patches addressing this issue.

References

https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_311/README.md
https://vuldb.com/submit/801007
https://vuldb.com/vuln/359735
https://vuldb.com/vuln/359735/cti
https://www.totolink.net/

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Details

CVE ID: CVE-2026-7136
Severity: Critical
CVSS Score: 9.8
Type: command_injection
Status: rejected

CWE

CWE-77

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H