RCE in Comfast Cf-ac100
CVE-2026-3798
A vulnerability was detected in Comfast CF-AC100 2.6.0.8. This affects the function sub_44AC14 of the file /cgi-bin/mbox-config?method=SET§ion=ping_config of the component Request Path Handler. The manipulation results in command injec…
EPSS: 0.001 (24.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Comfast Cf-ac100 — versions 2.6.0.8
- Comfast Cf-ac100_firmware — versions 2.6.0.8
Weakness classification (CWE)
References
- VDB-349765 | Comfast CF-AC100 Request Path mbox-config sub_44AC14 command injection (technical-description, Third Party Advisory, VDB Entry, vdb-entry)
- VDB-349765 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
- Submit #766443 | Comfast CF-AC100 V2.6.0.8 Command Injection (Third Party Advisory, VDB Entry, third-party-advisory)
- cna@vuldb.com (Exploit, Third Party Advisory, exploit)
Frequently asked questions
- What is CVE-2026-3798?
- CVE-2026-3798 is a medium-severity vulnerability in Comfast Cf-ac100, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 4.7/10. Published 2026-03-09.
- How severe is CVE-2026-3798?
- Medium severity. CVSS v3 base score is 4.7 out of 10.