File Inclusion Vulnerability in Totolink N300RH Product
CVE-2026-7633

6.9MEDIUM

Key Information:

Vendor

Totolink
Status
N300rh
Vendor
CVE Published:
2 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-7633?

A file inclusion vulnerability exists in the Totolink N300RH model affecting version 6.1c.1353_B20190305. Specifically, the function setUploadSetting located in the /cgi-bin/cstecgi.cgi file allows for remote manipulation of the FileName argument. This flaw can be exploited to include unauthorized files from the server, potentially leading to unauthorized access and control over system settings. As the exploit is publicly available, users of this device are at an increased risk of compromise.

Affected Version(s)

N300RH 6.1c.1353_B20190305

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-2026-7633 - Proof of Concept

References

https://vuldb.com/vuln/360579
vdb-entrytechnical-description
https://vuldb.com/vuln/360579/cti
signaturepermissions-required
https://vuldb.com/submit/806597
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
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

xuanyu (VulDB User)
.