CVE-2023-38031Network attack vector

Authenticated command execution via Web History parameters

Published Sep 7, 2023 · Updated Sep 26, 2024

Command injection in ASUS RT-AC86U firmware 3.0.0.4.386.51529 allows remote authenticated users to execute arbitrary OS commands. The Adaptive QoS Web History function fails to filter special characters in a parameter before using it in an operating-system command. Regular user access to the router's Web GUI is required, and successful exploitation can disrupt the router or terminate services.

CVSS severity8.8
High
EPSS probability1.38%
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 ASUS RT-AC86U firmware 3.0.0.4.386.51529 allows remote authenticated users to execute arbitrary OS commands. The Adaptive QoS Web History function fails to filter special characters in a parameter before using it in an operating-system command. Regular user access to the router's Web GUI is required, and successful exploitation can disrupt the router or terminate services.

The record

CVE
CVE-2023-38031
Published
Sep 7, 2023
Updated
Sep 26, 2024
Vendor
ASUSTeK Computer Inc.
Product
RT-AC86U
Classifications
CWE-78, CAPEC-88, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 26, 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=3.0.0.4.386.51529

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ASUSTeK Computer Inc. · RT-AC86Uversion=3.0.0.4.386.51529

Published CVSS scores

8.8TWCERT/CCCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CAPEC-88OS 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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