CVE-2023-50206

Root code execution via flupl command injection

Published May 3, 2024 · Updated Aug 2, 2024

OS command injection in D-Link G416 firmware 1.08b02 and earlier allows remote attackers on the LAN to execute arbitrary code as root. The flupl query_type edit handling in the TCP port 80 HTTP service uses an unvalidated user-supplied string to execute a system call. No authentication is required, but the attacker must reach the router from the adjacent LAN; successful exploitation fully compromises the device.

CVSS severity8.8
High
EPSS probability0.92%
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 D-Link G416 firmware 1.08b02 and earlier allows remote attackers on the LAN to execute arbitrary code as root. The flupl query_type edit handling in the TCP port 80 HTTP service uses an unvalidated user-supplied string to execute a system call. No authentication is required, but the attacker must reach the router from the adjacent LAN; successful exploitation fully compromises the device.

The record

CVE
CVE-2023-50206
Published
May 3, 2024
Updated
Aug 2, 2024
Vendor
D-Link
Product
D-Link G416 Firmware
Classifications
CWE-78, T1059
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 3, 2024CVE 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=1.08b02

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

D-Link · D-Link G416 Firmwareversion=1.08b02
D-Link · G416version=1.08b02

Published CVSS scores

8.8Zero Day InitiativeCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.8NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
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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