Vulnerability · Published Aug 19, 2026 · Assigned by VulDB
CVE-2026-76008Comfast CF-N1-S URI Parameter Parsing mbox-config get_para_from_uri stack-based overflow
Critical 10.0
In plain English
A critical-severity stack buffer overflow in CF-N1-S from Comfast. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 64% of all known vulnerabilities).
Severity (CVSS 3.1)10.0Critical
Exploit odds (30 days)1.0%top 36.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
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:X/RL:X/RC:R
References
- VDB-391922 | Comfast CF-N1-S URI Parameter Parsing mbox-config get_para_from_uri stack-based overflow vdb-entry, technical-description
- VDB-391922 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- CVE-2026-76008 | CVE Analysis and Report third-party-advisory
- Submit #878007 | Comfast CF-N1-S V2.6.0.1 Stack-based Buffer Overflow third-party-advisory
- https://github.com/1ChaoRen1/IOT_3 related