OS Command Injection Vulnerability in Totolink A8000RU Product
CVE-2026-7241

9.3CRITICAL

Key Information:

Vendor

Totolink
Status
A8000ru
Vendor
CVE Published:
28 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-7241?

A newly discovered vulnerability in the Totolink A8000RU affects the CGI handler's setWiFiBasicCfg function, allowing attackers to perform remote OS command injections. By manipulating the 'wifiOff' argument in the /cgi-bin/cstecgi.cgi file, unauthorized execution of commands could be executed, posing significant security risks to the device. Exploits for this vulnerability have already been made public, underlining the urgent need for users to implement security measures.

Affected Version(s)

A8000RU 7.1cu.643_b20200521

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-7241 - Proof of Concept

References

https://vuldb.com/vuln/359848
vdb-entrytechnical-description
https://vuldb.com/vuln/359848/cti
signaturepermissions-required
https://vuldb.com/submit/803086
third-party-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

LtzHust2 (VulDB User)
.