Buffer overflow in Comfast Cf-N1-S
CVE-2026-94003
A vulnerability has been found in Comfast CF-N1-S 2.6.0.1. Impacted is the function get_css_path_from_uri of the file /cgi-bin/mbox-config of the component Web Management Interface. The manipulation leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (49.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Comfast Cf-N1-S — versions 2.6.0.1
Weakness classification (CWE)
References
- vuldb.com/vuln/407952 (technical-description, vdb-entry)
- vuldb.com/vuln/407952/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-94003 (third-party-advisory)
- vuldb.com/submit/944859 (third-party-advisory)
- github.com/AdminSafe/CVE/issues/12 (issue-tracking, exploit)
Frequently asked questions
- What is CVE-2026-94003?
- CVE-2026-94003 is a critical-severity vulnerability in Comfast Cf-N1-S, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 10.0/10. Published 2026-09-20.
- How severe is CVE-2026-94003?
- Critical severity. CVSS v3 base score is 10.0 out of 10.