CVE-2023-47463Public exploitNetwork attack vector

Unauthenticated root command injection

Published Nov 30, 2023 · Updated Oct 16, 2024

Command injection in GL.iNet GL-AX1800 Firmware 4.0.0 allows remote attackers to execute arbitrary commands via the gl_nas_sys authentication endpoint. The gl_nas_sys authentication routine incorporates the supplied password into an OpenSSL shell command without neutralizing shell metacharacters, allowing command execution as root. Exploitation requires the WebDAV/NAS service to be enabled or reachable after reboot; successful attacks provide complete control of the router.

CVSS severity9.8
Critical
EPSS probability1.28%
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 GL.iNet GL-AX1800 Firmware 4.0.0 allows remote attackers to execute arbitrary commands via the gl_nas_sys authentication endpoint. The gl_nas_sys authentication routine incorporates the supplied password into an OpenSSL shell command without neutralizing shell metacharacters, allowing command execution as root. Exploitation requires the WebDAV/NAS service to be enabled or reachable after reboot; successful attacks provide complete control of the router.

The record

CVE
CVE-2023-47463
Published
Nov 30, 2023
Updated
Oct 16, 2024
Vendor
GL.iNet
Product
GL-AX1800 Firmware
Classifications
CWE-281, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 30, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 16, 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=4.0.0 <4.5.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

GL.iNet · GL-AX1800 Firmwareversion=4.0.0 <4.5.0

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-281Improper Preservation of Permissions
T1059.004Command and Scripting Interpreter: Unix Shell

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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