CVE-2026-7203

CRITICAL

Totolink A8000RU CGI cstecgi.cgi setUrlFilterRules os command injection

Title source: cna

Description

A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the function setUrlFilterRules of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument enable results in os command injection. The attack can be launched remotely. The exploit has been made public and could be used.

References (5)

Core 5

Core References

Vdb Entry, Technical Description vdb-entry technical-description

VDB-359803 | Totolink A8000RU CGI cstecgi.cgi setUrlFilterRules os command injection

https://vuldb.com/vuln/359803

Signature, Permissions Required signature permissions-required

VDB-359803 | CTI Indicators (IOB, IOC, TTP, IOA)

https://vuldb.com/vuln/359803/cti

Third Party Advisory third-party-advisory

Submit #801528 | Totolink A8000RU 7.1cu.643_b20200521 Command Injection

https://vuldb.com/submit/801528

Exploit exploit

https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_322/README.md

View Exploit ZIP pw:eip

Product product

https://www.totolink.net/

Scores

CVSS v3 9.8

EPSS 0.0245

EPSS Percentile 82.2%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact total

Details

CWE

CWE-77 CWE-78

Status published

Products (1)

Totolink/A8000RU 7.1cu.643_b20200521

Published Apr 28, 2026

Tracked Since Apr 28, 2026