Vulnerability record · CVE-2023-3206 · published 12 June 2023

CVE-2023-3206: Feiyuxing vec40g firmware improper resource shutdown vulnerability

Feiyuxing · Vec40g Firmware

A vulnerability classified as problematic was found in Chengdu VEC40G 3.0. Affected by this vulnerability is an unknown functionality of the file /send_order.cgi?parameter=restart. The manipulation of the argument restart with the input reboot leads to denial of service. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-231229 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

7.5 CVSS 3.1 High EPSS 19% · top 2.8% CWE-404 · Improper resource shutdownCWE-77 · Command injection

7.5CVSS 3.1 base score, v2 5.0

19%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

6References, 2 tagged exploit

17 Jun 2026Last modified by NVD

Description

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Vec40g Firmware Feiyuxing

References

Link	Tags
https://github.com/shulao2020/cve/blob/main/Flying%20Fish.md	ExploitThird Party Advisory
https://vuldb.com/?ctiid.231229	Third Party Advisory
https://vuldb.com/?id.231229	Third Party Advisory
https://github.com/shulao2020/cve/blob/main/Flying%20Fish.md	ExploitThird Party Advisory
https://vuldb.com/?ctiid.231229	Third Party Advisory
https://vuldb.com/?id.231229	Third Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-3206), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.