CVE-2026-7140

CRITICAL 9.8

Totolink A8000RU CGI cstecgi.cgi CsteSystem os command injection

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

A vulnerability has been found in Totolink A8000RU 7.1cu.643_b20200521. Impacted is the function CsteSystem of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument HTTP leads to os command injection. The attack may be performed from remote. The exploit has been disclosed to the public and may be used.

CWE	CWE-78 CWE-77
Vendor	totolink
Product	a8000ru
Published	Apr 27, 2026
Last Updated	Apr 27, 2026

Stay Ahead of the Next One

Get instant alerts for totolink a8000ru

Be the first to know when new critical vulnerabilities affecting totolink a8000ru are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Totolink / A8000RU

7.1cu.643_b20200521

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/359739 vuldb.com: https://vuldb.com/vuln/359739/cti vuldb.com: https://vuldb.com/submit/801110 github.com: https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_315/README.md totolink.net: https://www.totolink.net/

Credits

🔍 LtzHuster2 (VulDB User)