OS Command Injection Vulnerability in Totolink CA750-PoE
CVE-2026-9515

5.3MEDIUM

Key Information:

Vendor

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-9515?

An OS command injection vulnerability has been identified in the Totolink CA750-PoE product version 6.2c.510. The flaw lies within the setUnloadUserData function located in the /cgi-bin/cstecgi.cgi file of the Setting Handler component. Malicious actors can exploit this vulnerability by manipulating the plugin_version argument, allowing them to execute arbitrary commands on the operating system. This attack can be performed remotely, making it critical for users of the affected product to assess their security measures promptly. Public exploit details have emerged, heightening the risk of potential attacks.

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-2026-9515 - Proof of Concept

References

https://vuldb.com/vuln/365515
vdb-entrytechnical-description
https://vuldb.com/vuln/365515/cti
signaturepermissions-required
https://vuldb.com/submit/813927
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)
.