Command Injection Vulnerability in Totolink A7000R Router
CVE-2026-1601

5.3MEDIUM

Key Information:

Vendor

Totolink
Status
A7000r
Vendor
CVE Published:
29 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-1601?

A security weakness has been found in the Totolink A7000R router, specifically within the setUploadUserData function located in the /cgi-bin/cstecgi.cgi file. By manipulating the FileName argument, attackers can execute arbitrary commands on the device, which poses a serious threat as the exploit can be executed remotely. This vulnerability has been publicly disclosed, increasing its risk for organizations using the affected product.

Affected Version(s)

A7000R 4.1cu.4154

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-2026-1601 - Proof of Concept

CVE-2026-1601 - Proof of Concept

References

https://vuldb.com/?id.343373
vdb-entrytechnical-description
https://vuldb.com/?ctiid.343373
signaturepermissions-required
https://vuldb.com/?submit.740760
third-party-advisory

EPSS Score

7% chance of being exploited in the next 30 days.

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

xuanyu (VulDB User)
.