Command Injection Vulnerability in Comfast CF-N1-S Device
CVE-2026-6799

5.3MEDIUM

Key Information:

Vendor

Comfast

Status
Cf-n1-s
Vendor
CVE Published:
21 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-6799?

A security flaw has been identified in the Comfast CF-N1-S 2.6.0.1 involving the file /cgi-bin/mbox-config?method=SET&section=ping_config. This vulnerability allows an attacker to manipulate the argument 'destination', resulting in command injection. The exploit can be executed remotely, posing a significant risk to users. Although the vendor was notified of this critical issue, there has been no response. Security measures should be taken to mitigate potential attacks leveraging this vulnerability.

Affected Version(s)

CF-N1-S 2.6.0.1

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-2026-6799 - Proof of Concept

References

https://vuldb.com/vuln/358492
vdb-entrytechnical-description
https://vuldb.com/vuln/358492/cti
signaturepermissions-required
https://vuldb.com/submit/795203
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

xxyNB (VulDB User)
VulDB CNA Team
.