Vulnerability · Published Sep 20, 2026 · Assigned by VulDB
CVE-2026-94003Comfast CF-N1-S Web Management mbox-config get_css_path_from_uri stack-based overflow
Critical 10.0
In plain English
A critical-severity stack buffer overflow in CF-N1-S from Comfast. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).
Severity (CVSS 3.1)10.0Critical
Exploit odds (30 days)0.6%top 50.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
Weakness: CWE-121, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
References
- VDB-407952 | Comfast CF-N1-S Web Management mbox-config get_css_path_from_uri stack-based overflow vdb-entry, technical-description
- VDB-407952 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- CVE-2026-94003 | CVE Analysis and Report third-party-advisory
- Submit #944859 | Comfast CF-N1-S V2.6.0.1 Buffer Overflow third-party-advisory
- https://github.com/AdminSafe/CVE/issues/12 exploit, issue-tracking