Command Injection Vulnerability in Comfast CF-AC100 Product
CVE-2026-3798

5.1MEDIUM

Key Information:

Vendor

Comfast

Status
Cf-ac100
Vendor
CVE Published:
9 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3798?

A detected command injection vulnerability in the Comfast CF-AC100 version 2.6.0.8 allows attackers to exploit the function sub_44AC14 within the /cgi-bin/mbox-config?method=SET&section=ping_config path handler. This exploitation can be initiated remotely, posing significant security risks. Despite early notification to the vendor regarding this disclosure, there has been no response, making the exploit accessible to potential attackers.

Affected Version(s)

CF-AC100 2.6.0.8

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-2026-3798 - Proof of Concept

References

https://vuldb.com/?id.349765
vdb-entrytechnical-description
https://vuldb.com/?ctiid.349765
signaturepermissions-required
https://vuldb.com/?submit.766443
third-party-advisory

CVSS V4

Score:
5.1
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

allanp0e (VulDB User)
VulDB
.