CVE-2024-39760Public exploitNetwork attack vector

Unauthenticated code execution via injected cron schedule

Published Jan 14, 2025 · Updated Nov 3, 2025

OS command injection in Wavlink AC3000 firmware M33A8.V5030.210505 allows remote attackers to execute arbitrary code via HTTP. The unauthenticated login.cgi set_sys_init() path inserts the restart_min_value POST field into SCH_Reboot without validation, and sch_reboot.sh appends that value to the adm2860 crontab. Network access to the router's web interface is sufficient; injected cron syntax runs attacker-controlled commands with the privileges assigned to the scheduled job.

CVSS severity10.0
Critical
EPSS probability17.38%
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 Wavlink AC3000 firmware M33A8.V5030.210505 allows remote attackers to execute arbitrary code via HTTP. The unauthenticated login.cgi set_sys_init() path inserts the restart_min_value POST field into SCH_Reboot without validation, and sch_reboot.sh appends that value to the adm2860 crontab. Network access to the router's web interface is sufficient; injected cron syntax runs attacker-controlled commands with the privileges assigned to the scheduled job.

The record

CVE
CVE-2024-39760
Published
Jan 14, 2025
Updated
Nov 3, 2025
Vendor
Wavlink
Product
AC3000 Tri-band Wi-Fi Router
Classifications
CWE-77, T1190
Attack vector
network
Privileges
unauthenticated

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 privilegesunauthenticated

What is affected?

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

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0Cisco TalosCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1190Exploit Public-Facing Application

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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