OS Command Injection Vulnerability in Totolink A7100RU Product
CVE-2026-6131

9.3CRITICAL

Key Information:

Vendor

Totolink
Status
A7100ru
Vendor
CVE Published:
12 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-6131?

A security vulnerability has been identified in the Totolink A7100RU specifically within the CGI Handler's setTracerouteCfg function. This issue arises from improper handling of the command argument which allows for OS command injection. Attackers can exploit this vulnerability remotely, potentially gaining unauthorized access to the system. Public knowledge of this exploit increases the urgency for users to assess their devices and apply the appropriate security measures.

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-2026-6131 - Proof of Concept

References

https://vuldb.com/vuln/356995
vdb-entrytechnical-description
https://vuldb.com/vuln/356995/cti
signaturepermissions-required
https://vuldb.com/submit/792251
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)
.