Command Injection Vulnerability in Comfast CF-N1 by Comfast
CVE-2025-9581

5.3MEDIUM

Key Information:

Vendor

Comfast

Status
Cf-n1
Vendor
CVE Published:
28 August 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-9581?

A significant command injection vulnerability has been identified in the Comfast CF-N1 2.6.0 device, specifically within the multi_pppoe function of the web management interface located at /usr/bin/webmgnt. This weakness allows attackers to manipulate the phy_interface argument, potentially enabling unauthorized command execution on the affected system. The vulnerability can be exploited remotely, posing a risk to network integrity and security. It is crucial for users and administrators to be aware of this vulnerability and take necessary precautions to mitigate potential attacks.

Affected Version(s)

CF-N1 2.6.0

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-2025-9581 - Proof of Concept

References

https://vuldb.com/?id.321694
vdb-entrytechnical-description
https://vuldb.com/?ctiid.321694
signaturepermissions-required
https://vuldb.com/?submit.636127
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

n0ps1ed (VulDB User)
.
CVE-2025-9581 : Command Injection Vulnerability in Comfast CF-N1 by Comfast