OS Command Injection Vulnerability in Totolink CA750-PoE Product
CVE-2026-9511

5.3MEDIUM

Key Information:

Vendor

Totolink
Status
Ca750-poe
Vendor
CVE Published:
25 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-9511?

A vulnerability exists in the Totolink CA750-PoE version 6.2c.510 that enables an attacker to manipulate the setWebWlanIdx function in the /cgi-bin/cstecgi.cgi file. This manipulation allows for remote OS command injection, potentially granting unauthorized access to system functionality. Public exploits for this vulnerability are available, posing significant security risks to users.

Affected Version(s)

CA750-PoE 6.2c.510

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-2026-9511 - Proof of Concept

References

https://vuldb.com/vuln/365511
vdb-entrytechnical-description
https://vuldb.com/vuln/365511/cti
signaturepermissions-required
https://vuldb.com/submit/813922
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
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

Buoy_yes (VulDB User)
.