CVE-2024-9200Network attack vector

Administrator command execution via diagnostic host injection

Published Dec 3, 2024 · Updated Dec 6, 2024

OS command injection in Zyxel DSL/Ethernet CPE firmware allows remote authenticated users to execute commands via a diagnostic host parameter. The diagnostic function incorporates the unneutralized host value into an operating-system command, allowing supplied command syntax to alter execution. Exploitation requires administrator credentials and management-interface access; WAN access is disabled by default, and successful injection executes commands on the device.

CVSS severity7.2
High
EPSS probability1.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Zyxel DSL/Ethernet CPE firmware allows remote authenticated users to execute commands via a diagnostic host parameter. The diagnostic function incorporates the unneutralized host value into an operating-system command, allowing supplied command syntax to alter execution. Exploitation requires administrator credentials and management-interface access; WAN access is disabled by default, and successful injection executes commands on the device.

The record

CVE
CVE-2024-9200
Published
Dec 3, 2024
Updated
Dec 6, 2024
Vendor
Zyxel Networks
Product
EMG6726-B10A Firmware
Classifications
CWE-78, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Dec 3, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 6, 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=0 <=5.13\(abnp.8\)c0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Zyxel Networks · EMG6726-B10A Firmwareversion=0 <=5.13\(abnp.8\)c0
Zyxel Networks · VMG3927-B50B Firmwareversion=0 <=5.13\(ably.9\)c0
Zyxel Networks · VMG4927-B50A Firmwareversion=0 <=5.13\(ably.9\)c0
Zyxel Networks · VMG4005-B50A Firmwareversion=0 <=5.15\(abqa.2.2\)c0; version=<= V5.15(ABQA.2.2)C0
Zyxel Networks · VMG4005-B50B Firmwareversion=0 <=5.13\(abrl.5.1\)c0
Zyxel Networks · VMG4005-B60A Firmwareversion=0 <=5.15\(abqa.2.2\)c0

Published CVSS scores

7.2Zyxel NetworksCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

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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