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VulnerabilityPublished Updated

CVE-2024-39789: 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
1.0% chance of exploitation in 30 days – higher than 65% 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, employing network segmentation and firewall rules.
  2. Enforce strong authentication mechanisms and change default credentials to prevent unauthorized authenticated access.
  3. Monitor network traffic for unusual HTTP requests targeting nas.cgi or FTP configuration endpoints.
  4. Disable FTP services if not required or restrict FTP configuration changes through administrative policies.
  5. Regularly audit router configurations for unauthorized changes.
  6. Engage with Wavlink or authorized vendors for firmware updates or patches addressing this vulnerability as they become available.
  7. Implement network intrusion detection/prevention systems (IDS/IPS) to detect exploitation attempts.
  8. Educate IT staff about this vulnerability to ensure rapid response to suspicious activity.
  9. Consider deploying alternative hardware or software solutions if patching is delayed.

Description

Multiple external config control vulnerabilities exist in the nas.cgi set_ftp_cfg() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to permission bypass. An attacker can make an authenticated HTTP request to trigger these vulnerabilities.A configuration injection vulnerability exists within the `ftp_port` POST parameter.

References

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