CVE-2026-9406

CRITICAL

Totolink A8000RU Web Management cstecgi.cgi setRemoteCfg os command injection

Title source: cna

Description

A weakness has been identified in Totolink A8000RU 7.1cu.643_b20200521. Affected is the function setRemoteCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Executing a manipulation of the argument enable can lead to os command injection. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks.

References (5)

Core 5

Core References

Vdb Entry, Technical Description vdb-entry technical-description

VDB-365387 | Totolink A8000RU Web Management cstecgi.cgi setRemoteCfg os command injection

https://vuldb.com/vuln/365387

Signature, Permissions Required signature permissions-required

VDB-365387 | CTI Indicators (IOB, IOC, TTP, IOA)

https://vuldb.com/vuln/365387/cti

Third Party Advisory third-party-advisory

Submit #813441 | Totolink A8000RU 7.1cu.643_b20200521 Command Injection

https://vuldb.com/submit/813441

Exploit exploit

https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_338/README.md

View Exploit ZIP pw:eip

Product product

https://www.totolink.net/

Scores

CVSS v3 9.8

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

Details

CWE

CWE-77 CWE-78

Status published

Products (1)

Totolink/A8000RU 7.1cu.643_b20200521

Published May 24, 2026

Tracked Since May 25, 2026