CVE-2023-3206Public exploitNetwork attack vector

Unauthenticated reboot via unchecked restart endpoint

Published Jun 12, 2023 · Updated Aug 2, 2024

Command injection in Chengdu Feiyuxing VEC40G 3.0 allows remote attackers to reboot the router through its web interface. The /send_order.cgi?parameter=restart endpoint accepts the JSON restart value reboot without a session and invokes the device restart operation. A single unauthenticated POST interrupts routing service by restarting the appliance; no data access or configuration change is reported.

CVSS severity7.5
High
EPSS probability18.71%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Chengdu Feiyuxing VEC40G 3.0 allows remote attackers to reboot the router through its web interface. The /send_order.cgi?parameter=restart endpoint accepts the JSON restart value reboot without a session and invokes the device restart operation. A single unauthenticated POST interrupts routing service by restarting the appliance; no data access or configuration change is reported.

The record

CVE
CVE-2023-3206
Published
Jun 12, 2023
Updated
Aug 2, 2024
Vendor
Chengdu Feiyuxing Technology Co., Ltd.
Product
VEC40G
Classifications
CWE-77, CWE-404, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Chengdu Feiyuxing Technology Co., Ltd. · VEC40Gversion=3.0

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.0VulDB CNAAV:N/AC:L/Au:N/C:N/I:N/A:P
5.3VulDB CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-404Improper Resource Shutdown or Release
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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