Buffer overflow in Comfast Cf-N1-S
CVE-2026-76008
A flaw has been found in Comfast CF-N1-S 2.6.0.1. This affects the function get_para_from_uri of the file /cgi-bin/mbox-config of the component URI Parameter Parsing. This manipulation of the argument width/height causes stack-based buffer overflow. The attack can be initiated remotely.
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: 0.010 (62.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.2% 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: 0.010 · change: +0.004
Affected products
- Comfast Cf-N1-S — versions 2.6.0.1
Weakness classification (CWE)
References
- vuldb.com/vuln/391922 (technical-description, vdb-entry)
- vuldb.com/vuln/391922/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-76008 (third-party-advisory)
- vuldb.com/submit/878007 (third-party-advisory)
- github.com/1ChaoRen1/IOT_3 (related)
Frequently asked questions
- What is CVE-2026-76008?
- CVE-2026-76008 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 2026-08-19.
- How severe is CVE-2026-76008?
- Critical severity. CVSS v3 base score is 10.0 out of 10.