OS Command Injection in Totolink A7100RU by Totolink
CVE-2026-6029

9.3CRITICAL

Key Information:

Vendor

Totolink
Status
A7100ru
Vendor
CVE Published:
10 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-6029?

A security weakness has been identified in the Totolink A7100RU router, specifically within the CGI Handler's function setVpnAccountCfg. This issue allows for OS command injection when parameters are manipulated, potentially enabling an attacker to execute arbitrary commands on the affected system remotely. The vulnerability exists in the file /cgi-bin/cstecgi.cgi, making it crucial for users to apply security measures promptly. The exploit is now publicly available, increasing the risk of attacks targeting unwary users.

Affected Version(s)

A7100RU 7.4cu.2313_b20191024

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-2026-6029 - Proof of Concept

References

https://vuldb.com/vuln/356605
vdb-entrytechnical-description
https://vuldb.com/vuln/356605/cti
signaturepermissions-required
https://vuldb.com/submit/792050
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

LtzHust (VulDB User)
.