CVE-2024-42634Public exploitNetwork attack vector

Root command execution via unvalidated MAC parameter

Published Aug 16, 2024 · Updated Aug 16, 2024

Command injection in the Tenda AC9 15.03.06.42 web interface allows remote authenticated users to execute OS commands as root. The formWriteFacMac handler reads the mac POST parameter with websGetVar and passes it to doSystemCmd without validation. Access to the authenticated /goform/WriteFacMac endpoint is required, and successful exploitation grants full control of the router operating system.

CVSS severity9.8
Critical
EPSS probability2.21%
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 the Tenda AC9 15.03.06.42 web interface allows remote authenticated users to execute OS commands as root. The formWriteFacMac handler reads the mac POST parameter with websGetVar and passes it to doSystemCmd without validation. Access to the authenticated /goform/WriteFacMac endpoint is required, and successful exploitation grants full control of the router operating system.

The record

CVE
CVE-2024-42634
Published
Aug 16, 2024
Updated
Aug 16, 2024
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
AC9
Classifications
CWE-94, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 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=v15.03.06.42

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · AC9version=v15.03.06.42

Published CVSS scores

9.8CISA-ADPCVSS: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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059Command and Scripting Interpreter

Public exploit references

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Technologies

Your stack

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Your stack

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