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VulnerabilityPublished Updated

CVE-2024-39799: Wavlink AC3000 · External Control of System or Configuration Setting

Affects Wavlink AC3000Source CVE Database V5

0

Not known to be exploited · CVSS 9.1 Critical.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
9.1Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
1.3% chance of exploitation in 30 days – higher than 70% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 14 Jan 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

AI-suggested

  1. Immediately restrict access to the router’s management interface to trusted networks and users only, ideally via VPN or secure management VLANs.
  2. Enforce strong authentication mechanisms and change default or weak credentials to prevent unauthorized access.
  3. Monitor router logs and network traffic for unusual authenticated HTTP POST requests targeting openvpn.cgi or the 'sel_open_interface' parameter.
  4. 5. Disable OpenVPN server functionality on affected devices if not required, reducing the attack surface. 6. Conduct regular security audits and penetration tests focusing on network devices to detect similar vulnerabilities. 7. Implement multi-factor authentication for router management interfaces to mitigate risks from credential compromise. 8. Educate network administrators about this vulnerability and the importance of monitoring authenticated access patterns.

Description

Multiple external config control vulnerabilities exists in the openvpn.cgi openvpn_server_setup() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to arbitrary command execution. An attacker can make an authenticated HTTP request to trigger these vulnerabilities.A configuration injection vulnerability exists in the `sel_open_interface` POST parameter.

References

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