CVE-2024-39784Public exploitNetwork attack vector

Authenticated command execution via disk_part injection

Published Jan 14, 2025 · Updated Nov 3, 2025

Command injection in Wavlink AC3000 firmware M33A8.V5030.210505 allows remote authenticated users to execute arbitrary commands via HTTP. The nas.cgi add_dir() handler inserts the disk_part POST value into mkdir and chmod shell commands without neutralizing subshell syntax. An authenticated management session is required, and successful exploitation runs arbitrary shell commands on the router.

CVSS severity9.1
Critical
EPSS probability6.19%
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 Wavlink AC3000 firmware M33A8.V5030.210505 allows remote authenticated users to execute arbitrary commands via HTTP. The nas.cgi add_dir() handler inserts the disk_part POST value into mkdir and chmod shell commands without neutralizing subshell syntax. An authenticated management session is required, and successful exploitation runs arbitrary shell commands on the router.

The record

CVE
CVE-2024-39784
Published
Jan 14, 2025
Updated
Nov 3, 2025
Vendor
Wavlink
Product
AC3000 Tri-band Wi-Fi Router
Classifications
CWE-74, T1059.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jan 14, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 2025Record 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=M33A8.V5030.210505

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Wavlink · AC3000 Tri-band Wi-Fi Routerversion=M33A8.V5030.210505

Published CVSS scores

9.1Cisco TalosCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
7.2NIST NVDCVSS: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 exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1059.004Unix 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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