CVE-2026-76008: Comfast CF-N1-S URI Parameter Parsing mbox-config get_para_from_uri stack-based overflow

Severity: critical (CVSS 10.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-19 · updated 2026-10-22
Weakness: CWE-119

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

Comfast CF-N1-S: 2.6.0.1

References

https://github.com/1ChaoRen1/IOT_3
https://vuldb.com/cve/CVE-2026-76008
https://vuldb.com/submit/878007
https://vuldb.com/vuln/391922
https://vuldb.com/vuln/391922/cti

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